Can masseter Botox have negative side effects? Search masseter Botox on TikTok, and you'll find plenty of videos praising the results… and plenty warning of bizarre side effects , including worsened jaw clenching, a lopsided smile, and an inability to chew. However, it's possible for the procedure to cause side effects such as: pain or swelling at the site of injection bruising headache flu-like symptoms crooked smile drooling Masseter Botox is a non-surgical cosmetic treatment that involves injecting Botulinum Toxin Type A (Botox, Dysport, Xeomin, Juveau ) into the masseter muscles located at the angle of the jaw. Masseter Botox is a safe and common procedure, but there are certain side effects users should be aware of, including: Pain and bruising at the injection site Headache Nausea Flu symptoms Temporary facial drooping or weakness Dr. Garshick says when the muscles are strong and large, treating them with Botox helps create a slimming effect. "It is also helpful for those who suffer from TMJ to help relieve teeth grinding and other symptoms such as pain and soreness," she explains. woPtZ42.

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