Generally each injection of Botox to control armpit odor can be maintained for 6-9 months, and the clinical operation is mostly carried out by doctors with operational experience, which generally has less side effects and is very safe. However, if the injection operation is improper, it may also cause the following adverse reactions: 1. The most common may be bleeding and infection; 2. If the injection site is not correct, injection into the functional muscles may cause soreness and swelling of the upper arm muscles and weakness of activity; 3. Some patients are allergic to botulinum toxin, which may cause cough, rash, panic and other adverse reactions after injection. There are many treatments for axillary odor, of which botulinum toxin injection is a relatively simple and minimally invasive operation, botulinum toxin has the function of inhibiting sweat gland secretion. Axillary odor is caused by excessive secretion of sweat glands, so it can be controlled by subcutaneous injection of botulinum toxin, and the clinical treatment is more effective.