1.What is Botox? Is it toxic? Botulinum toxin is not as scary as its name suggests. Many beauty places refer to it as biological wrinkle removal, or genetic wrinkle removal, in order to remove the fear of people. Botulinum toxin is a biological product that can be mass-produced through genetic engineering methods. It is very commonly used in neurology, ophthalmology, plastic and cosmetic surgery because of its nerve blocking effects. The current dose used is only one percent of its maximum safe dose, so it is very safe. 2. How long have people been using Botulinum toxin? Only products that stand the test of time are good products, and people have been using Botox cosmetically through injections for more than 20 years. 3.Why do you use Botox to treat enlarged bite muscles? And not to remove the muscle directly? Women, who are beautiful with oval face shape, often ask for plastic surgery because of the hypertrophy at the jaw angle. Tens of thousands of cases of jaw angle curvilinear osteotomy are performed every year. More than 90% of these patients are accompanied by benign bite muscle hypertrophy and wish to have it reduced at the same time. Since it is difficult to grasp the amount of muscle removal and the depth of muscle removal during surgery, not only is the result unsatisfactory, but it also tends to increase the chance of bleeding, hematoma, infection, causing serious complications such as asymmetry on both sides of the face, facial nerve paralysis, dental closure, and longer-term muscle spasm. In 1994, Smyth et al. reported the use of botulinum toxin for the treatment of bilateral facial hypertrophy. In 1994, Smyth et al. reported their experience with the use of botulinum toxin in the treatment of bilateral bite hypertrophy, which was considered a revolutionary new method, and Smyth recommended this technique as a routine treatment for “chewing muscle hypertrophy”. Botulinum toxin injections shrink and reduce the size of the bite muscle through denervation, making the treatment more complete and solving this problem. The combination of Botulinum toxin injection and jaw angle surgery has obtained a good effect of 1+1 is greater than 2 in the treatment of fat face. Combined with facial liposuction, cheekbone reduction and widening, the fat face can be improved to a greater extent. 4.How is Botox used? Generally, 2 – 3 injection sites are selected on each side for injection. The injection should be done as slowly as possible, and there is no need for local massage and other special treatment after the injection, as normal chewing movements can gradually spread the drug in the muscle tissue. 5.When does Botulinum toxin type A take effect? How long does the effect last? After 2 weeks of Type A botulinum toxin injection into the bite muscle, the patient can feel a decrease in chewing power when chewing hard, and there is no obvious fatigue in the bite muscle, and there is no obvious contraction of the bite muscle when touched by hand locally. Generally, the atrophy of the bite muscle and the change of face shape can be observed 1 month after the injection of type A botulinum toxin. The effect can generally be maintained for six months to one year. 6.What adverse reactions may occur? As a muscle injection drug, Botox has no significant side effects and has more advantages than traditional surgical methods. Local adverse reactions after Botulinum toxin type A injection mainly include excessive weakness of the occlusal muscles and the corresponding manifestations caused by the spread of Botulinum toxin to the adjacent muscle tissues, and these clinical manifestations are related to the injection site and the dose of Botulinum toxin injected. Individual patients have been found to have fever, discomfort, and fatigue after botulinum toxin injection. Generally, these clinical manifestations are transient and disappear on their own within a few weeks. 7.Will there be recurrence after treatment? After botulinum toxin is injected into the bite muscle, the effect can generally be maintained for about 6 – 8 months, and the bite muscle will gradually recover after the drug effect is lost. However, after multiple injections, the effect will last longer and longer, and can generally last about 1 year after 3 – 4 times, and a few people can even maintain the effect of the bite muscle without injections in the future. Botulinum toxin can be repeatedly injected without toxin accumulation.