Precautions for nasolabial fold injection of hyaluronic acid:

1. Be careful not to inject hyaluronic acid into the blood vessels during the injection process, causing hyaluronic acid embolism. In mild cases, there may be obvious local pain and swelling, in severe cases, local skin necrosis may occur, and in severe cases, even life-threatening cases may occur.

2. After the injection of hyaluronic acid, be sure to keep the needle site clean to prevent infection.

3. After hyaluronic acid injection, if there is a slight bulge at the injection site, it is recommended that the patient press with the pulp of the finger, and rub the bulging part flat to achieve better results.

4. After hyaluronic acid injection, if there is slight bleeding during the injection process, and there is slight yellowing and purple after the operation, cold compresses can be applied within 24-48 hours. After 48 hours, you can do a proper heat compress, which can promote the subsidence of bruising and yellowing.

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