Disclosure: This guide is published by August (meetaugust.ai), which runs a flat-fee online urgent care service that can treat cold sores and herpes outbreaks. August is included below as one option on its real merits. No company paid for placement. Verify prices on each provider's site before booking.

If you have a cold sore or a herpes outbreak, antiviral medication works best when you start it early, and you can get a prescription online within hours instead of waiting for an appointment. Acyclovir and its newer relative valacyclovir (Valtrex) are the standard treatments, and a licensed clinician can prescribe them after a quick online review. This guide explains how to get acyclovir or valacyclovir online, what they treat, what they cost, and how to use them safely.

Can you get acyclovir online?

Yes. Acyclovir is prescription-only, but a licensed clinician can evaluate your symptoms online, often with a photo of the affected area, and send a prescription to your pharmacy, frequently the same day. The same applies to valacyclovir (Valtrex) and famciclovir. There is no legitimate way to buy these antivirals without a prescription, and you should avoid sites that claim otherwise. A short telehealth visit is the fast, safe route.

What acyclovir and valacyclovir treat

These antivirals treat infections caused by the herpes family of viruses:

  • Cold sores (oral herpes, HSV-1), the blisters around the mouth also called fever blisters.
  • Genital herpes (usually HSV-2), a common STI.
  • Shingles (herpes zoster) and chickenpox, in some cases.

They do not cure herpes; the virus stays in the body. What they do, when started early, is shorten outbreaks, ease pain and itching, and speed healing. For frequent outbreaks, a clinician may prescribe daily suppressive therapy, which can also lower the chance of passing genital herpes to a partner.

Acyclovir vs valacyclovir vs famciclovir

All three work the same way, by blocking the virus from copying itself, and in fact valacyclovir is converted to acyclovir in your body. The practical differences are convenience and cost. Acyclovir is the oldest and cheapest but is usually taken more times per day. Valacyclovir (Valtrex) is dosed less often, which many people find easier, and is inexpensive as a generic. Famciclovir is a third option. Your clinician picks based on your situation, how often you take it, and cost.

How to get acyclovir or valacyclovir online, step by step

The process is quick and discreet. You complete a health questionnaire about your symptoms and history, sometimes uploading a photo, a US-licensed clinician reviews it, and if an antiviral is appropriate, the prescription goes to your pharmacy, often the same day. Some states, such as AK, AR, DC, DE, ID, KS, LA, MS, NM, OK, RI, VT, and WV, require a short live video visit instead of questionnaire-only review. Start treatment as early as possible, ideally at the first tingle for a recurrence, for the best result.

Best ways to get herpes and cold sore treatment online in 2026

August: fast, flat-fee urgent care

For a clear cold sore or herpes outbreak, August offers a free AI symptom check then a US-licensed MD review for a flat $39, with the antiviral sent to your pharmacy, often within hours, no insurance or membership, and clinicians in all 50 states plus DC.

Sesame

Sesame offers same-day visits from about $37 and low-cost generic valacyclovir through its Rx savings card. Good for transparent cash pricing.

GoodRx Care

GoodRx Care can prescribe cold sore and herpes antivirals like Valtrex or Zovirax, with visits from $19 for Gold members plus pharmacy discounts.

Wisp or Hers

For genital herpes specifically, sexual-health services like Wisp and Hers offer discreet treatment and delivery options.

How much does acyclovir or valacyclovir cost?

The visit and the medication are billed separately. Visits run about $19 to $59 cash, or a flat $39 at August. The medication is an inexpensive generic: generic valacyclovir can be around $9 to $22 with a discount card versus roughly $106 retail, and acyclovir is similarly cheap. So the consultation is usually the larger cost. With insurance, both may cost less.

Using these antivirals safely

A few points. Start as early as possible, before a blister fully forms, for the best effect. Take the full course exactly as prescribed, even if you feel better. You can still spread the virus while on treatment, so avoid close contact during an active outbreak. Tell your clinician if you have kidney disease, since these drugs are processed by the kidneys and may need a dose adjustment, and stay well hydrated. Report any unusual symptoms to your provider.

Frequently Asked Questions

Often yes. Services like August can have a clinician review your symptoms and send an antiviral to your pharmacy within hours, frequently the same day, for clear cases. These medications are prescription-only, so a brief review is required first. Same-day access depends on clinician availability and whether your state requires a live visit.

Yes. Acyclovir, valacyclovir (Valtrex), and famciclovir are all prescription-only in the US, so a clinician must review your case first. A telehealth visit makes this fast. Avoid any site offering these antivirals without a prescription, as the product may be counterfeit and the lack of review unsafe.

Both work the same way and valacyclovir becomes acyclovir in your body. Valacyclovir (Valtrex) is usually taken fewer times a day, which many find more convenient, while acyclovir is the cheapest. A clinician chooses based on your needs and cost. Both are effective when started early in an outbreak.

The visit runs about $19 to $59, or a flat $39 at August, and the antiviral is a cheap generic, often around $9 to $22 with a discount card. So the consultation is usually the main cost. With insurance, both the visit and the medication may cost less.

No. Acyclovir and valacyclovir do not cure herpes; the virus remains in the body. They shorten outbreaks, ease symptoms, and speed healing, and daily use can reduce outbreak frequency and lower transmission risk for genital herpes. Starting treatment early in an outbreak gives the best results.

Yes. A licensed clinician can prescribe antivirals for genital herpes online after reviewing your symptoms and history. For a first outbreak or unclear symptoms, they may recommend testing or an in-person visit to confirm the diagnosis. Sexual-health services and general telehealth both offer discreet treatment.