Fever blister cream
A fever blister is a cold sore on or around the lip; treatment depends on its stage and your health history.
The short answer
Fever-blister creams may reduce symptoms or shorten the active episode when used as directed, especially early after tingling begins.
What is the direct answer?
What does this question mean?
A fever blister is usually a cluster of fluid-filled lesions caused by herpes simplex virus near the lip. It is different from a canker sore, which occurs on movable tissue inside the mouth.
What can you do next?
Use a clean fingertip or applicator for any labeled topical medicine, avoid picking the crust, and wash hands after touching the area. Keep the sore covered when practical and avoid kissing or sharing utensils while it is active.
When should you seek dental care?
Seek care if the sore involves the eye, spreads widely, lasts longer than expected, recurs often, or occurs with severe illness or a weakened immune system.
What should you ask the dentist?
Is this lesion on the lip or inside the mouth, and would an antiviral cream or another treatment fit its appearance?
Frequently asked questions
Can home care replace an examination?
Home care can reduce plaque and irritation, but it cannot diagnose or treat decay, calculus, infection, or damaged dental materials.
What will happen at the appointment?
The clinician will review your symptoms, examine the relevant teeth and gums, and use imaging or clinical tests when those findings require them.