Sweat hair on the arm is too long can be through the shaver, depilatory cream and other ways of temporary hair removal, can also be through the laser hair removal, OPT photon hair removal and other medical methods for permanent hair removal. 1. Temporary hair removal method: you can use shaver, depilatory cream, depilatory wax, etc., to shave the sweat hair on the arm, the operation is simple, quick results, but this way is only the skin epidermis of the hair removed, the hair follicle still exists, and its normal function will not be affected, but also will grow new sweat hair, which is a temporary hair removal method. 2. Permanent hair removal method: laser hair removal, OPT photon hair removal and other medical treatments, the use of photothermal principle, the role of the hair follicle localized, destroy the structure of the hair follicle, so that it loses the ability to regenerate, and to achieve the effect of permanent hair removal, generally need to carry out a number of operations in order to achieve the desired results. Sweat hair on the arm can be removed in many ways, it is recommended that the crowd choose the most appropriate way according to their own situation, if you need permanent hair removal, you need to go to a regular hospital, so as not to lead to adverse consequences.