Start antiviral treatment as soon as tingling or burning begins
Use docosanol cream as directed at the first sign
Apply a cold compress for short intervals
Keep the area clean and dry
Avoid picking, squeezing, or touching the sore
Wash hands after any contact with the sore
Use petroleum jelly to prevent cracking
Take over-the-counter pain relief if needed
Avoid acidic, salty, or spicy foods if the sore is on the lips
Avoid kissing and sharing drinks, utensils, lip balm, or towels
Get enough rest and reduce stress
See a doctor for prescription antivirals if outbreaks are frequent, severe, or not improving