What Does a Cold Sore Look Like? Quick Recognition Guide

Recognising a cold sore early can help you start treatment promptly and reduce symptoms. Cold sores typically progress through distinct stages, from initial tingling to fluid-filled blisters around the lips. This emergency guide helps you identify cold sore symptoms at each stage, understand when they're most contagious, and explore treatment options including prescription antivirals like aciclovir available through EverydayMeds online pharmacy.

  • Initial tingling or burning sensation around the lips (first 1-2 days)
  • Small fluid-filled blisters that appear clustered together
  • Blisters burst to form painful open sores with yellow crusting
  • Gradual healing with scab formation over 7-10 days total
Start your free consultation

Takes less than 2 minutes to complete, 100% online

usp of our everydaymeds for Cold Sore
usp of our everydaymeds for Cold Sore

Available Treatments

Choose from a wide range of clinically-proven, safe, and effective treatments for Cold Sore.

Frame 1321316359 (10).jpg__PID:683ae17e-3507-4d0b-af25-8c85abe00602

Aciclovir Tablets

From £12.99

Learn More
Frame 1321316360 (7).png__PID:dff4fe28-0ac9-428c-81e8-588045465bec

Aciclovir 5% Cream

From £8.99

Learn More
Frame 1321316361 (9).png__PID:a273f1c4-f302-426c-a281-03d0042e6c32

Valaciclovir

From £18.99

Learn More
Frame 1321316362 (7).png__PID:6fbcd9fa-032a-4beb-9e7c-b485a775f164

Valtrex

From £34.99

Learn More

Cold Sore Stages: Visual Recognition Timeline

Stage 1: Tingling Phase (Days 1-2)

The first sign of a cold sore outbreak is often a tingling, burning, or itching sensation around the lips or mouth area. You may notice slight redness or swelling before any visible blisters appear. This is the optimal time to start antiviral treatment such as aciclovir tablets, which may help reduce the severity and duration of the outbreak.

Stage 2: Blister Formation (Days 2-4)

Small, fluid-filled blisters begin to appear, typically clustered together on or around the lips. These blisters contain clear fluid and may be painful or tender to touch. The surrounding skin often appears red and inflamed. At this stage, cold sores become highly contagious.

Stage 3: Weeping Stage (Days 4-5)

The blisters burst open, creating shallow, painful ulcers with a red base. This is often the most uncomfortable stage and when cold sores are most contagious. Yellow or honey-coloured crusts may begin forming as the sores start to dry out.

Stage 4: Crusting and Healing (Days 5-10)

Scabs form over the open sores as healing progresses. These scabs may crack or bleed if disturbed. Gradually, the scabs fall off naturally, revealing pink, healing skin underneath. Complete healing typically occurs within 7-10 days from initial symptoms.

Treatment Options Available

EverydayMeds offers prescription antiviral treatments including aciclovir 400mg tablets and topical aciclovir 5% cream. Valaciclovir tablets provide an alternative option with less frequent dosing. Early treatment within 24-48 hours of symptom onset may help reduce outbreak duration and severity. Our online consultation service allows convenient access to prescription treatments when you need them most.

How it
Works?

Group 469326.png__PID:d1d71928-56cc-4f79-bdc7-0a45d0bc6b99
Background (1).png__PID:62282697-4455-4e74-a869-705c14f98b30
Background (3).png__PID:72aeaaf6-bb5b-4dd5-8914-6efdf80a1555

Start your assessment
for Cold Sore

Start your journey to better health today.

List.svg__PID:b4a5b990-cf62-48e4-ba8f-0a8bffce6cc6

Start your journey to better health today.

Once you complete a short online assessment, you’ll be able to choose your preferred treatment and quantity from a list of safe, medically approved options tailored to you.

Start My Assessment

Returning customer?

Log in to Your Account

Frequently asked questions