The smell of underarms may be caused by poor personal hygiene, bad breath and other reasons, need to carry out general treatment, medication, surgical treatment for the cause. 1. poor personal hygiene: attention should be paid to diligent bathing and changing clothes, pay attention to personal hygiene, keep the armpit clean. 2. Fox odor: follow the doctor’s instructions to use potassium permanganate solution can stop sweating, astringent, sterilization; axillary injection of botulinum toxin, can reduce the activity of sweat glands, so as to reduce the sweat of the armpit; can be carried out under the guidance of the doctor thoracoscopic thoracic sympathetic nervous chain amputation, sweat gland excision, and so on. It is recommended that people with underarm smell pay attention to personal hygiene, such as long-term non-relief, need to go to the regular hospital in time, a clear diagnosis, receive regular treatment, so as not to delay the condition.