Botulinum toxin type A is used in cosmetics in very small amounts. Generally no more than 200 sets at a time. Although highly safe, it is a neurotoxin after all. Precautions are as follows:

1, be sure to go to a regular medical institution for an injection. Illegal organizations sometimes use botulinum toxin from illegal channels, such as powder poison and white poison. And the dosage can exceed 3-8 times of the normal dosage, or it is injected into blood vessels irregularly, causing a series of toxic reactions such as general fatigue, dizziness, headache and cough when drinking water;

2. Aspirin and aminoglycosides should be stopped two weeks before injection. Foreign studies have shown that botulinum toxin does not affect pregnancy, but for safety reasons, it is best not to inject pregnant women, pregnant women or lactating women, because there can be no inflammatory infection on the face, and menstrual period should be avoided;

3. Do not apply hot compress or massage the local area after injection to avoid excessive spread of toxins. Sometimes the skin at the injection site will be slightly red and swollen, and a few people will have slight congestion at the injection site, which will generally disappear soon;

4. Observe in the hospital for 20-30 minutes after injection and leave without any discomfort. Do not stay in bed for 4 hours after injection, and do not wash your face for 6 hours. Do not wear makeup on the day of injection, do not touch or rub the injection site, and do not exercise vigorously;

5, the diet is mainly soft and chewy food, eating less hard food is conducive to maintaining the face-lifting effect.