The purpose is to prevent scarring and to improve appearance. Usually, acne eventually stops on its own, but the time it takes varies from person to person. This means you may have to be on acne treatment for as long as you tend to have acne problems, but then can safely stop acne medications once your acne has burned out. Some people only have to take acne medications for several months, others - for several years. Most people can be helped by acne treatment.
Warts are contagious.
They usually appear three to eight weeks after exposure to the virus. Some people, having developed an immunity, do not catch the disease, but in other instances, one will find numerous cases in which there are several people in the family with warts. Contagion occurs by direct contact. Some people develop an immunity after contracting warts resulting in spontaneous healing. This is caused by the natural body defense system, but does not occur in all people.