The precautions to be taken after the injection are not to get wet, avoid aminoglycoside antibiotics, avoid facial massage, and eat less hard food. 1. Do not get wet: it is best not to get wet within 24 hours after the injection to avoid local infection. 2. Avoid aminoglycoside antibiotics: Avoid aminoglycoside antibiotics after face slimming injection, because such antibiotics will enhance the effect of botulinum toxin. 3. Avoid facial massage: it is better not to have facial massage within 1 to 2 months after the injection. If the massage is stronger, it will cause uneven diffusion of botulinum toxin, and it is easy to change the smile of the face and distort the corners of the mouth. 4. Eat less hard food: eat less hard food and avoid chewing hard to avoid affecting the effect of the injection after the injection.