I have a big scar on my face from a mva i am going to see a dermatologist what might they do for it? surgery? meds?

Opinion: Also consider a second opinion from a plastic surgeon.

A suggestion: I would respecfully suggest that a better specialist to see would be a board-certified plastic surgeon or facial plastic surgeon. While some dermatologists may perform scar treatments and revisions, they are not surgeons. Scar revisions are a standard part of the repertoire of the surgeons above, and they are equipped to deal with the complications of the treatment if any occur.

Laser: Or silicone gels. If revision of scar is needed probably best to see a plastic surgeon.