I had rhinitis surgery and functional nose surgery done at the otolaryngology clinic. They say they use Megaderm donated dermis, but it is used to raise the bridge and tip of the nose. First of all, I am most worried about the absorption rate . How much is absorbed?? Is it worth the surgery? Cartilage tying is also performed on the tip of the nose, and if the donor dermis is raised, will it sag later and make the nose look wider?