The short answer
What are cold sores, and how can I reduce the chance of spreading them?
Cold sores are contagious blisters caused by herpes simplex virus (HSV), usually HSV-1. They often appear on or around the lips, may hurt, and are different from noncontagious canker sores. The virus remains in the body after sores clear, so episodes can recur, although healthy people's sores generally clear within about two weeks. Transmission can occur through saliva or close skin contact, including when no sore is visible. Until sores have scabbed, avoid kissing, intimate contact, and sharing drinks or personal items, and wash hands after touching the area.
When might more than messages be needed?
A remote history may be insufficient when a sore is new, atypical, severe, recurrent but uncertain, or not improving. Video can help show location and appearance, but it cannot collect a lesion sample. A clinician may recommend in-person examination or a swab/PCR when a lesion is present; testing decisions depend on symptoms and history. Seek prompt evaluation for eye symptoms or if immunity is weakened.
Overview
Educational information about cold sores. Online care may or may not be appropriate; a clinician must evaluate your individual circumstances.
Common symptoms
- Tingling near the lip
- Small blisters
- Tenderness
How online care works
Choose your concern and check your current state. If an approved clinical intake pathway is available, a licensed clinician may review your health information and determine the appropriate visit type and next steps.
When virtual care may be appropriate
- Symptoms are localized and uncomplicated
When to seek urgent or in-person care
- Eye involvement
- Widespread or severe symptoms
- Impaired immunity with worsening illness
For a possible medical emergency, call 911 or seek immediate emergency care.
Potential treatment options
- Self-care guidance
- Antiviral medication when appropriate
Frequently asked questions
Can cold sores be evaluated online?
It depends on your symptoms, location, and the clinician's judgment. Some situations require an in-person examination.
Will I get a prescription?
Not necessarily. A prescription is issued only when medically appropriate.