Hello, this is Dr. E. Greetings from New York! I'm so glad you posted your question for me to answer, and I aim to provide you with accurate info.
You need to use thick petroleum jelly on your lips four times a day to rehydrate them - the other creams can just irritate them more! Also make sure you're avoiding very hot (temperature) or spicy foods
Then I would recommend you use an anesthetic cream until they heal on their own - one like viractin or oragel. Use up to four times a day.