1, the common side effect is that the face will become stiff and the smile will be unnatural.

2. If there are too many face-lifting needles on the face, it may cause symptoms of dysphagia.

3. Asymmetry on both sides of the face or muscle weakness at the injection site.

4. Some people may have local swelling and fever after injecting face-lifting needle.

5. The corresponding manifestations caused by excessive weakness of masseter muscle and the spread of face-lifting needle to adjacent muscle tissues.

6. Some patients with thin face found fever, discomfort and fatigue after injection of botulinum toxin.