How to Heal a Coldsore

Overview

Cold sores are a form of infection from the herpes simplex virus. Cold sores are most commonly caused by herpes simplex 1, though herpes simplex 2 (which commonly causes genital herpes) can also cause cold sores. Cold sores are painful open sores on the lips or other oral mucosa and will generally heal on their own after seven to 10 days, though they can recur.

Step 1

Keep the area clean and dry. Keeping the cold sore from getting too moist will help it dry out and heal.

Step 2

Avoid spicy and acidic foods. These foods can cause irritation, causing the cold sore to become swollen and painful.

Step 3

Take antivirals. Certain medications such as famciclovir and acyclovir, while formulated to prevent outbreaks of genital herpes, are also effective at speeding the healing of cold sores. These medications can also be used to help prevent cold sore outbreaks.

Step 4

Use Abreva. Abreva is an over-the-counter cream that, when applied at least three times a day to the cold sore, has been shown to speed the healing process for cold sores.

Step 5

Apply lidocaine or other analgesic ointments. These medications can be used to temporarily numb the affected portion of the mouth or lip and can relieve symptoms.