1, moderate pressure on the injection site for 10 minutes to prevent local blood seepage from the needle eye and reduce bruising and swelling. 2.After injection, observe for 20 minutes without any discomfort before leaving the hospital. 3.Do not massage and rub the injection area to avoid discomfort caused by the rapid spread of drugs. 4, 4 to 6 hours after injection, you can wash your face. 5.After injection, if you have headache, you can take acetaminophen orally for pain relief. 6.If there is local bleeding and bruising, ice can be applied appropriately. 7.Do not take aminoglycoside antibiotics (such as gentamicin, tobramycin, netilmicin and kanamycin, etc.). 8.Avoid drinking alcohol within 24 hours after injection.