The anesthetic agent used by dentists and Mohs surgeons is most often lidocaine (brand name Xylocaine). A topical anesthetic cream can be used to minimize the pinch from the injection but the solution does cause some discomfort as it is injected into the deeper tissue. The topical...
Mohs surgery is a wonderful procedure that has over a 99% cure rate. I don't know when you had your original diagnosis, but even if it's been a bit the likelihood of it spreading to the skull or metasticizing like you are describing is pretty much impossible. What it most likely would be is that...
It is not uncommon to see significant post op periorbital edema and ecchymoses following forehead surgery. Regardless, I would suggest discussing with a Board Certified Dermatologist with expertise in Mohs surgery.