The fastest way to slim down the face in a week can be through microplastic injection of Botox. Botox injections into the facial bite muscle, by blocking the nerve to muscle nutrition, so that the bite muscle gradually atrophy, and botulinum toxin has a certain decomposition effect on fat, can make the face thin. After the injection of botulinum toxin requires a certain amount of time to take effect, not immediately after the injection, the time in about two weeks will be more obvious, to achieve a week to slim the face effect can pay attention to the following points: 1, do not get wet within a week of injection, to avoid facial infection; 2, do not massage the face within a week, massage is not conducive to the toxin in the bite muscle to play a role. The bite muscle has a lot to do with chewing food, do not chew hard food within a week, liquid diet, and strengthen nutrition.