Evidence-Based Health Guides

Physician-written guides covering symptoms, treatment options, clinical guidelines, and when to seek care. Written in the same voice used with patients in clinical care.

Written by Parth Bhavsar, MD

124 Guides Published

Peer-Reviewed Sources

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Acute & Urgent Care (52 guides)

Bites, infections, pain, respiratory, and other same-day concerns.

Evidence-Based

Food Poisoning Treatment in Adults

Rehydration, norovirus recovery, what to eat, medicine cautions, and when to seek urgent care.

Why cat bites infect at 30-50% rates, Pasteurella multocida urgency, antibiotic prophylaxis, hand-bite dangers, and Kanavel signs.

Prednisone Dosing for Poison Ivy

Exact regimen, tapering rules, why short courses are dangerous, and Medrol Dosepak pitfalls.

Poison Ivy, Oak & Sumac

Topical vs systemic steroids, why creams often fail, and when prednisone is the right call.

Xocova (Ensitrelvir) for COVID PEP

Post-exposure prophylaxis evidence and how it compares to Paxlovid.

Cyclosporiasis Outbreak 2026

Live CDC/FDA case tracker, the stool test standard panels miss, and the antibiotic that cures it.

Long COVID Treatment Update

2026 clinical updates on POTS, exercise pacing, and what current evidence supports.

Seasonal Allergy Guidelines 2026

Updated allergist recommendations and what changed.

Wound care, when antibiotic prophylaxis is warranted, rabies risk, and when to head to the ED.

Paxlovid 2026 Efficacy Update

Latest data on effectiveness in vaccinated adults.

The virus, the five stages, oral versus topical antivirals, the 24-hour timing window, and suppression.

Cold Sores Inside the Mouth

Intraoral herpes, gingivostomatitis in kids, and how to distinguish these from canker sores.

The five stages from tingle to healing, how long each lasts, and when you are most contagious.

How to tell the two apart and why the treatment for each is different.

Getting Rid of a Cold Sore Fast

The timing window, the best oral antivirals, and what home care actually does.

Valacyclovir for Cold Sores

The one-day 2-gram regimen, how the prodrug works, timing, side effects, and telehealth access.

Shingles Antiviral Window

The 72-hour rule, exceptions, and what happens if you miss it.

First-line antibiotics, when IV therapy is required, MRSA coverage, and abscess vs cellulitis.

Antiviral window, pain control, and when postherpetic neuralgia develops.

Sinus Infections (Sinusitis)

Viral vs bacterial, 10-day rule, antibiotic indications, and symptomatic care.

Strep vs viral, Centor criteria, when to test, and treatment options.

Bridging treatment while you get to a dentist, when antibiotics matter, and red flags.

Treatment eligibility, dosing, drug interactions, and rebound COVID.

Adult otitis media, treatment options, and when watchful waiting is safe.

Motion Sickness Treatment

Scopolamine patches, meclizine timing, and prevention that works.

Antihistamines, nasal steroids, and when allergy testing helps.

Common Cold & Influenza

Antiviral windows, testing, symptom management, and when to seek care.

Shingles Vaccine (Shingrix)

Who needs it, timing, side effects, and cost.

Rapid vs PCR, home tests, and when a positive changes management.

Triptans, gepants, prevention, and when imaging is needed.

Pink Eye: Antibiotics vs Watchful Waiting

The evidence for skipping antibiotics in adult conjunctivitis.

Epinephrine Auto-Injector

When and how to use it, storage, and what happens after you inject.

Pink Eye (Conjunctivitis)

Bacterial vs viral vs allergic, when antibiotics help, and return-to-work rules.

Alaska Wildfire Smoke Respiratory Care

Regional guide for smoke exposure, inhalers, and remote-triage decisions.

Acute flare treatment, urate-lowering therapy, and diet reality checks.

Allopurinol vs Colchicine

One lowers urate, the other stops a flare. Why they are usually prescribed together.

Gout Attack Treatment

Colchicine, NSAID, or steroid: dosing, ice, and how fast each option works.

Gout Diet: Foods to Avoid

Beer, sugar, and high-purine foods ranked by gout risk, plus what actually helps.

Two crystals, two diseases: how urate gout differs from calcium pyrophosphate disease.

The 6.8 mg/dL threshold, what counts as high, and the 6.0 treatment target.

Wildfire Smoke & Your Health

What AQI really means, which masks work, the $50 DIY air purifier, and ER red flags.

Identifying triggers, topical steroid ladder, and when to escalate to oral steroids.

Oseltamivir, baloxavir, timing windows, and who benefits.

Rapid treatment options, colchicine dosing, and when to add steroids.

Controller vs rescue inhalers, action plans, and when to escalate.

When to test, antiviral eligibility, and high-risk patient decisions.

Flu Shot Side Effects

What is normal, what is not, and separating vaccine reactions from unrelated illness.

Topical vs oral antibiotics, contagion control, and when to swab.

Continued breastfeeding, when antibiotics help, and abscess red flags.

Tick removal, Lyme prophylaxis criteria, single-dose doxycycline, and rash monitoring.

Tooth Infection & Antibiotics

When abscesses need antibiotics vs immediate dental drainage.

Canker Sore Treatment

Topical steroids, amlexanox, magic mouthwash, B12, and when a recurrent ulcer needs a workup.

12 min

Reviewed Sep 2026

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Skin Conditions (16 guides)

Rashes, eczema, acne, and dermatology conditions treatable via telehealth.

Evidence-Based

Hives Treatment in Adults

Antihistamines, the 24-hour wheal and 6-week rule, prednisone evidence, and emergency signs.

Topical vs oral antifungals, and how to prevent household spread.

Permethrin, ivermectin, household treatment, and post-treatment itching.

Dandruff & Seborrheic Dermatitis

Zinc, ketoconazole, selenium sulfide, and rotation strategy.

Hyperhidrosis Overview

Primary vs secondary, workup, and treatment ladder.

OTC vs prescription options, resistance, and non-medicated methods.

Topicals, phototherapy, biologics, and when to see a dermatologist.

Excessive Sweating (Hyperhidrosis)

Clinical antiperspirants, glycopyrrolate, iontophoresis, and Botox.

Topical retinoids, antibiotics, isotretinoin, and hormonal options.

Eczema (Atopic Dermatitis)

Moisturizer strategy, topical steroid ladder, and newer biologics.

Concentration, cycling, safety concerns, and OTC alternatives.

Sunscreen, hydroquinone, tretinoin, and why it comes back.

Why you must stop the steroid cream, and what actually works.

Azelaic acid 10% vs 15%, gel vs foam, irritation, and feature-based rosacea treatment.

Why the pigment changes linger, and treatment that actually clears it.

Topical Steroid Withdrawal

How to recognize it, when to taper, and evidence on management.

11 min

Reviewed Jul 2026

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Sexual Health & STIs (8 guides)

STI testing, treatment, and prevention with evidence-based sourcing.

Evidence-Based

Genital Warts

Topical treatments, cryotherapy, HPV vaccination, and recurrence.

Genital Herpes Treatment

Episodic vs suppressive antivirals, disclosure, and transmission risk.

Doxycycline first-line, azithromycin exceptions, partner treatment, and retest window.

Doxy-PEP for STI Prevention

CDC recommendation, dosing, who qualifies, and resistance concerns.

Bacterial Vaginosis (BV)

Causes, symptoms, CDC treatment, and stopping recurrent BV.

The biofilm evidence, a typical protocol, and the safety rules.

What BV discharge looks like and how it differs from yeast and trich.

Why BV smells fishy, the whiff test, and how to stop the odor.

BV vs Yeast Infection

pH, discharge, and odor clues that tell the two apart.

Treatment and the evidence-backed ways to stop it coming back.

Uses, alcohol interaction reality, and side effect management.

Metronidazole dosing changes and partner treatment.

Symptoms, causes, fluconazole and OTC treatment, and recurrent infections.

Fluconazole for Yeast Infection

Dosing, effectiveness, safety, and when the single 150 mg pill stops working.

Recurrent Yeast Infection

Why infections return and the suppression treatments, including oteseconazole.

Vaginal Yeast Infection

Symptoms, causes, and risk factors, and how the diagnosis is confirmed.

Yeast Infection Home Remedies

What actually works, from boric acid to the remedies to skip.

Yeast Infection vs BV

How to tell the two apart: pH, discharge, odor, and the right treatment.

19 min

Reviewed Sep 2026

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Chronic Conditions & Medication (8 guides)

Long-term conditions, medication refills, and ongoing management.

Evidence-Based

Acid Reflux (GERD)

PPI vs H2, lifestyle, and when to escalate.

Anxiety & Depression Medications

SSRI/SNRI selection, timing, and what to expect the first six weeks.

Birth Control Refills

What can be prescribed via telehealth and what needs an in-person visit.

Cholesterol (Hyperlipidemia)

Statin eligibility, PCSK9 inhibitors, and diet realism.

Hypertension (High Blood Pressure)

Treatment thresholds, first-line medications, and home monitoring.

Home care, when procedures help, and red flags to rule out.

Hypothyroidism Treatment

Levothyroxine dosing, T3 debate, and monitoring cadence.

Type 2 Diabetes Medications

Metformin, GLP-1s, SGLT2s, and the modern treatment ladder.

13 min

Reviewed Aug 2026

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Men's & Women's Health (13 guides)

Hormonal, reproductive, and gender-specific care.

Evidence-Based

Performance Anxiety Treatment

Cognitive strategies, PDE5s, SSRIs, and when to escalate care.

AUA 2026 BPH Guideline Update

What changed in the 2026 guideline and what it means for treatment.

Prevention evidence vs treatment claims.

Alpha-blockers, 5-ARIs, combination therapy, and 2026 AUA updates.

Vaginal Dryness Treatment

Non-hormonal, local estrogen, and safety in cancer survivors.

Urinary Tract Infections (UTIs)

2025 IDSA guideline changes, first-line antibiotics, and recurrence prevention.

UTI Emergency Warning Signs

When a UTI becomes an ED-level concern.

PDE5 inhibitors, cardiovascular workup, and when testosterone helps.

Differential, when to test, and what treatment usually looks like.

UTI Symptoms in Women

Classic vs atypical presentations and when to test vs treat empirically.

Does AZO Treat a UTI?

What phenazopyridine does, does not do, and when it hides bigger problems.

Male-Pattern Hair Loss

Finasteride, dutasteride, minoxidil, and combination therapy.

Why male UTIs deserve a workup and what it should include.

8 min

Reviewed Aug 2026

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AI in Medicine (7 guides)

How AI chatbots perform against physicians, hallucination rates, safety, and regulation.

Evidence-Based

AI Medical Hallucination Rates 2026

Current benchmarks for fabricated citations and clinical claims.

AI Chatbots vs Physicians: Diagnostic Accuracy

What controlled studies show and where LLMs still fall short.

FDA First AI Warning Letter 2026

What triggered the letter and what it signals for AI medical products.

Bixonimania: Fake Disease AI Experiment

What happens when chatbots are asked about conditions that do not exist.

AI Chatbot Medical Information Safety

Safety guardrails, failure modes, and how to use these tools safely.

AI Chatbot Mental Health Lawsuits 2026

Active litigation, regulatory response, and clinical implications.

AI Respiratory Symptom Triage

Evidence for AI-assisted triage of cough, congestion, and shortness of breath.

11 min

Reviewed Aug 2026

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Telehealth Evidence (7 guides)

Clinical evidence for what telehealth actually does well, condition by condition.

Evidence-Based

Telehealth for Adult Ear Infections

When virtual assessment is enough and when it is not.

Telehealth Skin Triage with Photos

Store-and-forward dermatology accuracy and limitations.

Telehealth for Cold Sores

Time-to-treatment advantages of virtual antiviral access.

Telehealth UTI Clinical Evidence

Outcomes data for virtual UTI diagnosis and treatment.

Telehealth for Sinusitis

Antibiotic stewardship in virtual sinus care.

Antibiotic Stewardship in Telehealth 2026

Current data on antibiotic prescribing patterns in virtual care.

Telehealth Dermatology (Acne & Eczema)

Outcomes for common dermatology conditions treated virtually.

12 min

Reviewed Aug 2026

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Travel Medicine (11 guides)

Prescriptions and care for international visitors, mobile workers, and travelers.

Evidence-Based

Altitude Sickness Prevention

Acetazolamide dosing, dexamethasone, and ascent strategy.

Running Out of Medication While Visiting the US

Bridge prescriptions and what telehealth can and cannot do.

Truck Driver Health Risks & Telehealth

DOT exam prep, chronic condition management, and on-the-road care.

Managing Blood Pressure for Mobile Workers

Home monitoring, medication refills, and DOT-compliant control.

Medical Care for Visitors from India

Common medication equivalents and Rx access.

International Visitor Medical Care

How visitors to the US access urgent care and prescriptions.

Atención Médica para Visitantes de México

Guía en español para acceder a atención en EE. UU.

Healthcare on the Road: Flight Crews

Prescription refills and virtual care for aviation professionals.

Managing Chronic Conditions for Visiting Parents

Bridge care for parents visiting adult children in the US.

Medical Care for Visitors from Mexico

US pharmacy access and prescribing rules.

US Pharmacy Guide for International Visitors

How US prescriptions work for tourists and short-term visitors.

9 min

Reviewed Aug 2026

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Lifestyle & Specialty (9 guides)

Aesthetic dermatology, weight management, and quality-of-life care.

Evidence-Based

Latisse (Bimatoprost) for Lashes

Efficacy, side effects, and comparison to OTC serums.

Eyelash Growth with Bimatoprost

How it works, timeline, and side effects.

FDA Compounded GLP-1 503B Proposal

What the FDA proposal means for compounded semaglutide access.

The gold standard for photoaging and acne, without the myths.

Gig Worker Healthcare Options

Insurance, direct primary care, and telehealth for independent workers.

Varenicline, bupropion, NRT, and combination therapy that actually works.

GLP-1 Oral Weight-Loss Medications

Oral semaglutide, orforglipron, and how they compare to injectables.

Anti-Aging Treatments

What has evidence, what does not, and what a dermatologist would actually use.

How to negotiate, verify, and reduce medical bills.

10 min

Reviewed Aug 2026

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Pediatric Care (2 guides)

Physician-reviewed guides for parents on common childhood conditions, age-banded red flags, and school return rules.

Evidence-Based

Impetigo in Children

Recognize the rash, when antibiotics help, MRSA risk, and school return rules.

Viral vs bacterial vs allergic, when antibiotics genuinely help, and school return.

9 min

Reviewed Sep 2026

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At-Home Testing (4 guides)

Honest reviews of consumer home test kits and how to interpret results.

Evidence-Based

AZO UTI Test Strip Results

Reading results honestly and what to do next.

Visby At-Home STI PCR Test Review

PCR at home for chlamydia, gonorrhea, and trichomonas.

At-Home UTI Tests: Do They Work?

Test strip accuracy, when a positive matters, and false negatives.

Everlywell STI Test Panel Review

Accuracy, cost, and how it compares to in-lab testing.

10 min

Reviewed Aug 2026

Read guide

EDITORIAL STANDARDS

How this library is written, reviewed, and corrected

Independent. Evidence-based. No advertiser influence. No affiliate links. Read our full editorial policy, source selection criteria, and corrections process.

Read Editorial Standards →

Latest Articles

Abstract editorial illustration showing AI regulatory framework with scales of justice and compliance requirements for medical AI chatbots

AI in Medicine

AI Chatbot Mental Health Lawsuits: What Settlements Reveal About Crisis Response Failures

Series Week 4 of 6. The January 2026 Character.AI/Google settlements document systemic failure patterns: no escalation protocols, no age-gating, no parental notification. What the NAM panel found about adolescent susceptibility, and where supervised AI reliably helps in mental health.

Jun 29, 2026 · 9 min read

Read

At-home STI test kit components laid out on a desk, sealed swab packaging, specimen tube, lancet, and prepaid return envelope

At-Home Testing

Everlywell STI Test Panel Review: What the Evidence Says About Mail-In Sexual Health Testing

Evidence assessment of Everlywell's mail-in STI panel, self-collected NAAT accuracy, dried blood spot serology performance, uptake data, what the panel covers, and dual-path next steps after a positive result.

Jun 24, 2026 · 9–11 min read

Read

Bar chart visualization showing AI citation fabrication rates across GPT-3.5, GPT-4, and Bard with dissolving reference fragments

AI in Medicine

Hallucination Rates in Medical AI: What the Citation Fabrication Data Tells Us

Series Week 3 of 6. GPT-3.5 fabricates 55% of citations. Bard hallucinates 91.4% of medical references. A peer-reviewed breakdown of AI hallucination rates across models and tasks, and where verification is essential vs. where AI adds reliable value.

Jun 22, 2026 · 8–10 min read

Read

Physician pausing thoughtfully during a telehealth video consultation reviewing a clinical decision support panel before making an antibiotic prescription decision

Telehealth Evidence

Antibiotic Stewardship in Telehealth: What the 2026 Evidence Shows

The 2026 evidence on antibiotic prescribing quality in virtual care, sinusitis may see less prescribing than in-person, UTI stewardship outperforms respiratory, and CDC Core Elements cut hospitalizations when implemented.

Jun 17, 2026 · 8 min read

Read

AI chatbot confidently displaying a fictional disease entry with fake preprint papers and fictional funding references in the background

AI in Medicine

The Bixonimania Experiment: How a Fake Disease Fooled ChatGPT, Gemini, and Copilot

Series Week 2 of 6. Scientists invented a disease with fictional funding sources and obvious fabrication clues, then watched three major AI systems describe it as a real medical diagnosis. What the experiment reveals about AI reliability and the 12-fold rise in fabricated citations.

Jun 2026 · 9 min read

Read

Xocova ensitrelvir antiviral pill capsule with shield and virus particles representing COVID post-exposure prophylaxis

Clinical Update

FDA Approves Xocova (Ensitrelvir) for COVID-19 Post-Exposure Prophylaxis: What the Evidence Shows

FDA approved ensitrelvir on May 29, 2026 for COVID-19 post-exposure prophylaxis -- the first PEP option to clear US regulatory review. The trial evidence, the dosing window, and how it differs from Paxlovid.

Jun 2026 · 9 min read

Read

FDA regulatory document with magnifying glass and AI circuit pattern signifying first AI warning letter

AI in Medicine

FDA's First AI Warning Letter: What April 2026's Enforcement Action Means for Healthcare AI

Series Week 1 of 6. The FDA's April 2, 2026 Warning Letter to Purolea Cosmetics is the first cGMP enforcement explicitly citing AI misuse. FDA didn't ban AI -- it required human review and quality-unit oversight. The precedent for every AI-in-healthcare deployment.

Jun 2026 · 9 min read

Read

Telehealth skin condition triage with smartphone photographing rash for dermatologic evaluation

Telehealth Evidence

Telehealth for Skin Condition Triage: When Photos Are Enough

A 44-study meta-analysis shows photo-based dermatology agreement reaches 76% with proper photo standards. The evidence on which skin conditions are safely managed by image alone -- and which still need in-person dermoscopy or biopsy.

Jun 2026 · 9 min read

Read

AUA 2026 BPH guideline update visual showing guideline document with prostate anatomy and treatment icons

Clinical Update

AUA 2026 BPH Guideline: What's Changed and What It Means for Patients

The American Urological Association just released a 62-recommendation overhaul of BPH/LUTS care: PAE upgraded to Grade B, Aquablation expanded to larger prostates, tadalafil + 5-ARI combo formalized, and HIFU/cryoablation restricted to trials.

May 2026 · 9 min read

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Master Guide

What Conditions Can Be Treated Through Telehealth: The Complete 2026 Evidence-Based Guide

The full editorial map of telehealth in 2026. A three-tier decision framework, evidence by category, red flags that require in-person care, and links to all 49 condition guides plus the new At-Home Testing track.

May 2026 · 20 min read

Read

Long COVID 2026 treatment update with research and clinical management overview

Clinical Update

Long COVID in 2026: What We Now Know About Treatment

RECOVER-VITAL Paxlovid and ENERGIZE Metformin both failed as treatments in 2026 trials. Metformin still cuts Long COVID risk 41-63% when started during acute infection. Here's what the evidence supports now.

May 2026 · 9 min read

Read

FDA-approved versus compounded GLP-1 vial comparison

Clinical Update

FDA Moves to Close a Compounded GLP-1 Loophole: What the 503B Proposal Means for Patients

FDA's April 30 proposal would exclude semaglutide, tirzepatide, and liraglutide from the 503B bulks list. 100+ hospitalizations and 10+ deaths have been linked to compounded versions.

May 2026 · 8 min read

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About These Guides

Every guide in this collection is written by Parth Bhavsar, MD, a board-certified family medicine physician and founder of TeleDirectMD. These are not summaries of other websites or rehashed patient handouts. Each guide reflects the same clinical reasoning and evidence review that informs real patient care, translated into language any patient can follow.

Peer-Reviewed Sources

Every clinical claim cites published guidelines, trials, or systematic reviews.

Current Guidelines

Updated to reflect 2025-2026 clinical practice standards.

No Commercial Bias

No sponsored content. No affiliate links. No product endorsements.

Evidence-Based Health Guides

📈 Most Read This Quarter

Acute & Urgent Care (52 guides)

Skin Conditions (16 guides)

Sexual Health & STIs (8 guides)

Chronic Conditions & Medication (8 guides)

Men's & Women's Health (13 guides)

AI in Medicine (7 guides)

Telehealth Evidence (7 guides)

Travel Medicine (11 guides)

Lifestyle & Specialty (9 guides)

Pediatric Care (2 guides)

At-Home Testing (4 guides)

Latest Articles

About These Guides

Peer-Reviewed Sources

Current Guidelines

No Commercial Bias