Apply it once then apply another layer every few hours to keep your lips covered & protected. On the bottle it says to apply eve you 4 hours. Gently work it in with your finger until it becomes invisible and soft.
Important: DO NOT remove it & try to keep it on for as long as possible. After 2 - 3 days you'll start to see new skin. Just keep going at least a month to see what happens.
It's like the leave it alone method but it's a protective barrier that protects and heals the skin underneath but once you remove it, the new skin gets exposed to air & it dies, so you have to start over again.