The precautions for face slimming injection are as follows: 1, face slimming injection is not suitable for all people, only effective for those with hypertrophy of the bite muscle; 2, beauty lovers need to go to regular medical institutions for injection, illegal institutions may use non-legal channels of botulinum toxin, such as pink toxin, white toxin, etc., can cause general weakness, dizziness, headache, choking and a series of toxic reactions; 3, 2 weeks before the injection, you need to stop using aspirin class, aminoglycoside class of drugs. In addition, the preparation period, menstruation, pregnancy or breastfeeding women are best not to inject facial slimming injection; 4, after injection, should avoid hot compresses, massage local skin to avoid excessive dispersion of toxins, the skin of the injection site can appear slightly red, swollen, bruised, usually disappears quickly; 5, the day of injection do not wear makeup, avoid touching, rubbing the injection site, and do not exercise vigorously, after injection, need to be observed in the hospital 20-30min. After injection, you need to observe in the hospital for 20-30min, no discomfort before you can leave, within 4 hours after injection, don’t take continuous bed rest, don’t wash your face within 6 hours; 6, 1-2 weeks after injection, patients will have mild bite weakness, soft, easy to chew food should be the main, less food too hard to help maintain the slimming effect.