Hello everyone. My son has a cleft lip (if that's correct). The head i…

Hello everyone. My son has a cleft lip (if that's correct). The head is not fully open. Has anyone encountered this before? What did they do? Please help! He was born with a congenital curvature of the skull. The surgeon said to have an operation by 2 years old. Now I don't know what to do. If the head is closed, they will forcefully open it ?. I am in a state of confusion.