If you want to permanently remove armpit hair, you can take laser hair removal, but due to different personal constitution, whether it can be permanently removed varies from person to person. Laser hair removal is based on the principle of selective photothermolysis, through the reasonable adjustment of laser wavelength energy pulse width, to reach the root of the hair follicle, light energy is absorbed and converted into the destruction of the hair follicle tissue of the heat energy, so as to permanently remove the hair. However, several treatments are needed to achieve the effect of permanent removal. However, local discomfort may occur after laser hair removal treatment. The most common skin reactions include pain, temporary erythema and edema around the hair follicle. Localized skin irritation should be avoided for a short period of time. If you want to remove armpit hair permanently, it is recommended to go to a regular hospital and remove armpit hair under the operation of a professional doctor.