What do you need to prevent cold sore?

To prevent cold sores, you can:

- Wash your hands frequently with soap and water.

- Avoid touching your face, especially around your mouth and nose.

- Avoid contact with people who have cold sores.

- Use sunscreen with at least SPF 30 when you're outdoors.

- Take over-the-counter antiviral medication, such as acyclovir or valacyclovir, as soon as you feel a cold sore coming on.

- Try using an over-the-counter lip balm or ointment that contains zinc oxide to help protect your lips from the sun.

- Keep your stress levels in check.

- Get enough sleep.

- Eat a healthy diet.

- Drink plenty of fluids.

- Avoid foods that trigger your cold sores, such as certain types of chocolate, coffee, nuts, and seeds.