& ltp> A: I think your big face is caused by obvious muscle hypertrophy. It is very simple to inject the injection into your face. Injection will paralyze the masseter muscle, slowly degrade the muscle and make your face look smaller from the outside. But one thing you must understand is that every muscle of a person has its own function. The role of masseter muscle is to assist teeth to chew. If your masseter muscle is large, it may also support muscles and skin, because some girls with large masseter muscle will find that the masseter muscle is really thin after injection, but their faces are also paralyzed. This is the principle. Injection is time-sensitive. Basically, the masseter muscle will gradually recover after half a year. If you want to maintain the effect for a long time, it is recommended to perform masseter muscle resection. By partially removing the masseter muscle, your cheeks will gradually become thinner. But masseter muscle resection is an irreversible operation. If you want to do it, you should go to a regular plastic surgery hospital for face-to-face consultation. That's my answer. If you are interested, you can click on the picture below to read. & lt/p & gt； & ltp style = \ " text-align:center； \ "> & ltimg src = \"/uploadfile/image/202004011585719625847417.png \ "Title = \" Thin-faced teeth can. " " height = \ " 323 \ " border = \ " 0 \ " vspace = \ " 0 \ " style = \ " width:500 px； Height: 323px \ "/>; & lt/p & gt；