Typically 25-50 units of Botox is used for reducing the masseter and slimming the jawline. For a first-timer, a lower dose is often advised, but an experienced injector and a particularly large masseter could warrant a higher dose even up front. ~ Dr. Benjamin Barankin, Toronto Dermatology...
There are no contrainidications in this case, but I would recommend following up with your surgeon to assure you there is no issue with having the treatment. I hope this helps, and I wish you the best of luck.
Although 25 uints of Boxtox injected into each muscle is the common starting point in the treatment of hypertrophic masseter muscles, some patients may require lower or higher doses to achieve the desired effect. In your case, from your history, it appear that you will require a very...