Use an over-the-counter antiviral cream as soon as tingling starts
Apply docosanol cream if available
Take prescription antiviral medicine if prescribed by a doctor
Keep the sore clean and dry
Wash hands before and after touching the area
Avoid picking, squeezing, or scratching the sore
Use a cold compress to reduce pain and swelling
Take over-the-counter pain relievers if needed
Avoid kissing and oral contact until fully healed
Do not share cups, utensils, towels, or lip products
Use petroleum jelly or lip balm to prevent cracking
Avoid acidic, salty, or spicy foods if they irritate the sore
Get enough rest and manage stress
See a doctor if sores are severe, frequent, or do not heal
Seek medical care if the sore is near the eyes or you have a weakened immune system