Pepper water to wash the penis, currently there are many people do so, the main purpose is to make pepper water to stimulate the glans, slowly can reduce the sensitivity of the glans, mainly for the treatment of premature ejaculation. In fact, this way is not recommended in the clinic, because the mechanism of its action is not clear, the effect of the action is also questionable, only some patients effective. It is recommended that patients with premature ejaculation or circumcision can usually turn their foreskin over to reveal the glans and rub the glans with their underwear more often than not, so the sensitivity of the glans will slowly decrease gradually. In addition, you can also perform circumcision, the glans is completely exposed to the outside, the time will be gradually extended during sexual intercourse.