Want to avoid cold sores? Use sunblock

By Mayo Clinic Staff

No one likes cold sores. These tingling, red lip blisters are tough to hide, and sometimes they're slow to heal. You can help prevent them by applying sunblock on your lips and face year-round. Avoid kissing anyone who has a cold sore, and don't share utensils, lip balm, towels or other personal items.

June 17, 2020 See more In-depth