Use an over-the-counter antiviral cream as soon as you feel tingling or burning
Apply docosanol cream if available
Keep the area clean and dry
Use a cold compress to reduce pain and swelling
Take an over-the-counter pain reliever if needed
Avoid touching, picking, or popping the sore
Wash your hands after any contact with the sore
Avoid kissing and oral contact until it fully heals
Do not share drinks, utensils, lip balm, or towels
Use petroleum jelly or lip balm to prevent cracking
Get enough rest and manage stress
Avoid foods that irritate the sore
See a doctor for prescription antiviral medicine if sores are severe, frequent, or not improving
Seek medical care if the sore is near the eye, you have a weakened immune system, or you develop fever or widespread symptoms