After shaving with a razor armpit hair stinging is mostly considered to be razor scraping skin, skin sensitivity and other factors, need to address the cause, choose medication, physical therapy and other ways to improve the symptoms. 1. Razor scrape skin: razor sharp, shaving armpit hair is easy to damage the armpit local skin, easy to lead to mechanical skin damage and tingling. At this time, we should use povidone-iodine disinfection to prevent secondary infection; if necessary, under the guidance of the doctor, local topical antibiotic treatment, such as mupirocin ointment, fusidic acid cream. 2. Skin sensitivity: the armpit skin is relatively delicate, the use of razors to shave the armpit hair is easy to damage the skin barrier, the phenomenon of tingling, if the local phenomenon is not broken, you can apply some moisturizing cream to relieve the symptoms, but also can be iced locally, which can play the effect of analgesia. It is recommended that patients according to their own situation, reasonable treatment. Usually shave the armpit hair should pay attention to the action gently, avoid scratching the skin.