What Does a Cold Sore Look Like: Quick Visual Guide

Cold sores are small, fluid-filled blisters that typically appear on or around the lips, caused by the herpes simplex virus type 1 (HSV-1). Recognising the distinctive stages and appearance of cold sores can help you identify them quickly and seek appropriate treatment. Early identification is crucial for effective management, as antiviral treatments like aciclovir work best when started at the first signs of an outbreak.

  • Small fluid-filled blisters on or around lips
  • Initial tingling or burning sensation before blisters appear
  • Blisters that burst and form yellowish crusts
  • Complete healing cycle typically lasts 7-10 days
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

The 5 Stages of Cold Sore Appearance

Stage 1: Tingling Phase (Days 1-2)

The first signs of a cold sore often aren't visible. You may experience tingling, itching, or a burning sensation around the lip area. Some people also report slight swelling or redness. This is the optimal time to begin antiviral treatment with medications like aciclovir tablets, which can 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 are usually red around the edges with a clear or slightly cloudy centre. They may be painful to touch and can make eating or drinking uncomfortable. The blisters can vary in size from pinhead-sized to larger clusters.

Stage 3: Weeping Stage (Days 4-5)

The blisters burst open, releasing their fluid contents and forming shallow, red ulcers. This stage is the most contagious and often the most painful. The exposed sores may appear raw and tender. It's crucial to avoid touching the area and to maintain good hygiene to prevent spreading the virus.

Stage 4: Crusting Phase (Days 5-8)

A yellowish or brown scab forms over the sores as they begin to dry out. The crust may crack when you move your mouth, which can be painful and may cause minor bleeding. Resist the urge to pick at the scab, as this can delay healing and potentially cause scarring.

Stage 5: Healing Phase (Days 8-10)

The scab gradually flakes away, revealing pink, new skin underneath. The area may remain slightly tender and sensitive for a few more days. Complete healing typically occurs within 7-10 days for most people, though this can vary depending on individual factors and whether antiviral treatment was used.

When to Seek Treatment

Early treatment with antiviral medications such as aciclovir can help reduce symptoms and healing time. EverydayMeds offers prescription treatments including aciclovir tablets and topical creams that may help manage cold sore outbreaks when used as directed by a healthcare professional.

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