Acne is not contagious. A tendency to have acne may persist through ages 30's to early 40's. The tendency to develop acne is inherited. Although acne cannot be prevented, careful cleanliness can help to lessen the effects. No testing is usually required.
Treatment is designed to prevent formation of new lesions and aid the healing of old lesions.
Other medications may include topical or injected forms of cortisone . A small amount of sun exposure may improve acne. However, excessive exposure to sunlight or ultraviolet rays is not recommended because prolonged exposure increases the risk of skin cancer . Wash as often as needed to control oil, at least daily and after exercising. Use a clean washcloth every day to prevent bacterial reinfection.