It also has a long history as an effective treatment for cervical (neck) muscle spasms and uncontrollable blinking. Masseter Botox is a procedure to relax and reduce the size of the masseter muscle.

Masseter Botox relaxes your jaw muscle, which is the muscle that helps you chew. You can get masseter Botox to make your lower face appear slimmer and less square-shaped. It can also help pain ...