How do you cure a fever blister?

There is no cure for fever blisters, but there are a number of things you can do to treat the symptoms and speed up the healing process.

1. Apply a cold compress. This can help to reduce pain and swelling. You can use an ice pack, a frozen gel pack, or a cold, wet cloth.

2. Take over-the-counter pain relievers. These can also help to relieve pain. Some common options include ibuprofen (Advil, Motrin), acetaminophen (Tylenol), and naproxen (Aleve).

3. Apply a topical antiviral medication. These medications can help to shorten the duration of the outbreak. Some common options include acyclovir (Zovirax), penciclovir (Denavir), and famciclovir (Famvir).

4. Avoid touching the blister. This can help to prevent the spread of the infection.

5. Stay hydrated. Drinking plenty of fluids can help to keep your skin moist and prevent the blister from drying out.

6. Get rest. This can help your body to heal.

7. Avoid spicy foods and drinks. These can irritate the blister and make it more painful.

If you have a fever blister, it's important to see a doctor if:

- The blister is very painful or swollen.

- The blister is interfering with your ability to eat or drink.

- The blister is spreading to other parts of your body.

- You have a weakened immune system.

Your doctor may prescribe antiviral medications or other treatments to help speed up the healing process and prevent complications.