I. Injection method: injected in the muscle layer in points. 1, forehead lines forehead lines are horizontal lines, generally in the forehead injection 10 ~ 12 points, each point injection 2.5 ~ 5u, a total of 25 ~ 60u. pay attention to the location of the injection point, if the injection point is too low will occur eyelid drooping complications. 2. Interbrow lines Interbrow lines are longitudinal lines caused by the frontalis muscle, the descending brow muscle and the muscles at the medial edge of the orbicularis oculi. Injections of the interbrow lines should be done in 4 to 5 spots, each with 2.5 to 5 u, for a total of 10 to 25 u. Attention should also be paid to the location of the injection site, otherwise it may cause eyelid ptosis complications. 3, fishtail lines Fishtail lines are caused by the muscles on the lateral edge of the orbicularis oculi muscle. When injecting the fishtail lines, the points on both sides must be symmetrical and the injection dose must be the same. Otherwise, the muscle relaxation on both sides is not consistent and double vision will occur. 4, the broad neck muscle lines The broad neck muscle lines because some like turkey neck, so commonly known as “turkey neck”. It often occurs in older women, with one to two long, longitudinal cord-like stripes on the front of the neck. The above mentioned chemical peel, dermabrasion, and laser resurfacing are not applicable to the neck because the trachea and esophagus are underneath the neck, which is not easy to operate. If soft tissue filling is used, the more you cover it up, the uglier it becomes, turning into a big thick neck and even more unsightly. The only way to relax the broad neck muscle and make the wrinkles disappear is to use Botulinum toxin type A injection treatment. Generally, 5-6 points are injected under the chin and in front of the neck, each point is injected with 5u, total 25-30u. 5, botulinum toxin injection for face slimming Generally, 2-5 injection points are selected for each side. Injection should be as slow as possible, after the injection is not necessary for local massage and other special treatment, the general normal chewing movement can make the drug in the muscle tissue gradually spread. 6, calf muscles are too developed and thin face in the same way, Botox can also shrink part of the gastrocnemius muscle, so that the calf muscle is no longer too developed to achieve the effect of thin legs. Second, the injection time: 1 to 2 weeks after the injection of botulinum toxin type A muscle completely relaxed, wrinkles completely disappeared, the skin flattened. Can be maintained for 3-6 months, an average of 4 months, muscle strength and gradually recovered, wrinkles reappear, so the average year to inject 2-3 times, and repeated injections are still effective. Cautions after surgery: 1. Rest quietly within 4 hours after injection. Do not do strenuous activities within 24 hours. 2. Do not massage locally to avoid the drug entering the orbit and causing eye muscle paralysis. IV. Treatment effect: After 3~14 days, wrinkles will gradually stretch and disappear, maintaining 4~10 months. The dosage, dose, storage method, operation factors, nature and degree of wrinkles and individual differences can affect the therapeutic effect. Botox injection for facial wrinkle removal has the advantages of easy method, low cost and reusability. It has been promoted as the most promising cosmetic wrinkle removal method in the 21st century. Its joint application with laser and CO2 wrinkle removal has also achieved good clinical results. This method has been widely used in many western countries and has been proved to be a safe and effective technique for wrinkle removal.