Are there any side effects or sequelae of getting slimming injections for the face?

Generally, there are side effects and complications associated with getting a facial slimming injection. Common side effects include facial stiffness and unnatural expressions, localized muscle weakness and difficulty chewing, facial asymmetry, local infection and inflammatory reactions, as well as difficulties in swallowing and breathing. The specific details are as follows:

1. Facial Stiffness and Unnatural Expressions: After the injection, facial muscles may become stiff due to the effects of the medication, leading to unnatural facial expressions and a rigid smile. This is usually related to the dosage, injection technique, or individual facial anatomy. If the dosage is too high or the injection placement is inaccurate, surrounding facial muscles may be affected, restricting muscle movement.

2. Localized Muscle Weakness and Difficulty Chewing: After the injection, muscles such as the masseter muscle may become weak, causing difficulty when chewing food. The active ingredients in the slimming injection act at the neuromuscular junction, inhibiting the release of acetylcholine and causing muscle relaxation.

3. Facial Asymmetry: Facial asymmetry may occur after the injection, which can affect aesthetics. This may be caused by uneven dosage distribution, inaccurate injection placement, or differing responses of muscles on each side to the medication.

4. Local Infection and Inflammatory Reactions: The injection site may experience redness, swelling, pain, itching, or other signs of infection or inflammation. Improper injection technique or inadequate post-injection care can easily lead to localized infection. Additionally, allergic reactions to the drug components may also cause inflammatory responses.

5. Difficulty Swallowing and Respiratory Issues: In rare cases, if the injected substance spreads to the muscles of the throat, it may affect swallowing function, leading to dysphagia (difficulty swallowing). In severe cases, it may even affect breathing. This is usually associated with excessive dosage or incorrect injection placement, which damages the throat muscles.

To reduce the occurrence of side effects and complications, it is recommended that when choosing to receive a facial slimming injection, one must select a reputable medical facility and a qualified physician for the procedure. Before the injection, patients should fully inform the physician of their allergy history, medication history, and other relevant information, and undergo necessary allergy testing. After the injection, follow the post-care instructions provided by the physician, such as keeping the injection site clean and avoiding strenuous activity, to promote recovery and reduce the risk of complications.