About a year ago I've noticed some drooping on the corners of my mouth. It's still not so bad but it's getting worse every day! It wasn't like this before. I'm worried that it will become really serious in a few years if I don't do anything about it now. Since I'm only 19 I'm a bit reluctant to have any surgeries on it. I would be really glad if someone could tell me what exactly caused it and what can I do to stop and reduce the sagging. My sincere thanks!