Axillary odor, commonly known as fox odor, is a kind of axillary odor, emitting a special pungent odor, more obvious in summer, mostly begins to occur in adolescence, and can be reduced or disappear in old age. Axillary odor often brings a great psychological burden and low self-esteem to patients, and can even affect work and study. The human sweat glands are mainly located in the armpits, nose, external ear canal, groin, perineum, etc. The sweat glands are influenced by endocrine activity only in adolescence, so fox odor mostly begins in adolescence and is reduced or disappears in old age. The sweat glands secrete in addition to water, lipids, iron, fluorescent substances, colored substances, etc., but also contains a special odoriferous substances. The odor of fox is caused by the decomposition of the unsaturated fatty acids produced by the action of various bacteria in the area and the odoriferous substances secreted by the sweat glands. If you use drugs to kill the bacteria so that they can not produce a sufficient amount of unsaturated fatty acids, you can not occur odor. However, some scholars believe that the production of odor and the decomposition of parasitic bacteria on the surface of the skin is not obviously related, because the parasitic bacteria in the smelly and non-smelly places are basically the same, and the smelly substance itself emits odor when it decomposes. Fox odor is often hereditary and related to gender and racial differences, generally speaking, more women than men, more Caucasians and Blacks than Yellows, which is mainly related to the physiological structure and function of the sweat glands. There are many ways to treat up. At present, there are two types of methods to treat armpit odor: non-surgical methods and surgical methods. Non-surgical methods are suitable for patients with mild armpit odor, and surgical methods are suitable for patients with various degrees of armpit odor. Non-surgical methods: pay attention to personal hygiene, bathe regularly, change underwear regularly, and often keep the armpit dry and clean, which can reduce the emission of odor. Do less excessive exercise, eat less stimulating food, maintain a regular life and emotional stability. Topical application of aromatic lotions that have an inhibiting effect on axillary odor to remove odor. Available 25% aluminum chloride solution, 5% formaldehyde alcohol, armpit odor or alum powder often compresses rub. Method I external application process: through the external application of drugs with antiperspirant, antibacterial effect, such as Mitrasan, neomycin solution, etc. at least once a day to apply, so that the secretion of sweat to reduce the role of improving the concentration of odor. Advantages: can be homemade or self-purchased. Disadvantages: can only play a relieving role, the drug effect is short-lived, must be adhered to daily. Suitable for people: armpit odor is not serious, persistent perseverance. Method 2 fragrance method process: with the fragrance of perfume or powder, or spray or sprinkle in the armpits. Advantages: simple and easy to do. Disadvantages: only play a temporary masking role, there may be mixed with the smell of armpit odor more unpleasant. Suitable for people: people who want to facilitate, occasionally have a little armpit odor. Method three injection method Process: alcohol, botulinum toxin injection armpit. Make the sweat glands atrophy, inhibit the secretion of sweat glands. Advantages: more convenient than surgery, no scars, generally can start normal work and life after surgery. Disadvantages: Generally, at least two injections are needed for full effect, and more may be needed for severe cases. The effect lasts about one year. This method is generally not recommended. Suitable for: Those who do not want to go under the knife but want the effect to be relatively long-lasting. Method 4 Laser Method Process: The laser beam is applied to the armpit to destroy the hair follicles and sweat glands and cut off the sweat gland excretion pathway to get rid of the underarm odor. Pros: It is possible to complete hair removal at the same time. Cons: It is possible to miss a few pores and the depth of destruction is not deep enough, so more than two treatments are needed, especially for those with dense armpit hair and heavy odor. It is easy to leave a scar. Suitable for: Patients who have had surgery to remove armpit odor but still have odor but not very serious. Method 5 Freezing Process: Local freezing, using low-temperature liquid nitrogen to freeze the underarm, so that the sweat glands are destroyed. Advantages: It is basically a physical method to remove armpit odor, relatively safe, and can also remove some small hemangiomas, warts, pigments, etc. Disadvantages: There is some damage to the normal skin, and there is a possibility of recurrence. Suitable for people: those who are afraid of surgery and injections, those who have high requirements for safety and the duration of the effect is not too high. Surgical treatment is still the most thorough and safe way, and is suitable for people of any degree. We mostly use minimally invasive small incision skin in situ reimplantation to treat armpit odor, which is less invasive, with exact results and basically invisible scars, and has received wide popularity.