1, allergic reaction: Many women are allergic to hyaluronic acid. Local urticaria, itchy skin, redness, edema and other symptoms appear after injection, which can lead to dyspnea and anaphylactic shock in severe cases.

2, facial paralysis: Some institutions due to immature technology or lack of experience, resulting in facial nerve injury during injection, leading to facial paralysis, facial convulsions, mouth askew, stuttering and other symptoms.

3, facial expression is stiff: improper injection will cause facial muscles to lose their ability to contract and cannot smile naturally. At the same time, it may also be caused by nerve damage.

Extended data:

Matters needing attention

1, check whether you are allergic before injection, and the hospital will conduct preliminary screening to avoid allergic reaction.

2. Try to go to a regular hospital for plastic surgery to avoid damaging facial muscles and nerves.

3, before injecting hyaluronic acid, try to keep your face clean, it is best to clean it with cold water, which can accelerate pore contraction.

4. Try to avoid taking anti-inflammatory drugs before injection. Otherwise, it is likely to cause swelling and bleeding at the injection site.

References:

Baidu encyclopedia-hyaluronic acid