"About two days before and after menstruation or when you are on travel, sanitary napkin pad is the best convenient, practical and clean choice. However, experts suggest that sanitary napkin pad should not be frequently used. The skin structure is similar to that of tips. In medicine, if man's tips are damaged, doctors can transplant pubes skin to repair it. For the ideal environment of these two skins, it had better be not too dry and not too moist. "Delicate skin needs a very breathable environment. Too much closed and moist environment is easy to breed bacteria. "