Start antiviral treatment as soon as tingling or burning begins
Use prescription antiviral pills such as valacyclovir, acyclovir, or famciclovir if available
Apply an over-the-counter docosanol cream at the first sign of symptoms
Keep the sore clean and dry
Use a cold compress to reduce pain and swelling
Take ibuprofen or acetaminophen for pain if you can use them safely
Avoid touching, picking, or popping the sore
Wash your hands often
Avoid kissing and oral sex until fully healed
Avoid sharing drinks, utensils, lip balm, or towels
Use petroleum jelly or a lip balm to prevent cracking
Stay hydrated and rest
Avoid triggers such as stress, sun exposure, and lack of sleep
Use sunscreen or a lip balm with SPF on your lips
See a doctor if sores are severe, frequent, near the eyes, or not improving
Seek urgent care if you have eye pain, vision changes, fever, or trouble eating or drinking