Use an over-the-counter antiviral cream or ointment at the first sign of symptoms
Apply cold compresses to reduce pain and swelling
Keep the sore clean and dry
Avoid touching, picking, or popping the sore
Wash your hands after touching your face
Avoid kissing and oral contact while the sore is active
Do not share cups, utensils, towels, lip balm, or razors
Use petroleum jelly or a lip balm to prevent cracking
Take over-the-counter pain relievers if needed
Avoid acidic, salty, or spicy foods if the sore is in your mouth
Get enough rest and manage stress
Stay hydrated
Use sunscreen on your lips and face to help prevent future outbreaks
See a doctor if sores are severe, frequent, or do not heal
See a doctor if you have a weakened immune system or eye symptoms