Sebum is a liquid/oil that only mammals produce. The role of sebum is to make both the skin and body hair waterproof so they do not dry out. Sebum is created all over the body, including the head, eyes, face, arms and even penis. Unfortunately, excess sebum can lead to pimples, cysts and infected hair follicles that are both uncomfortable and potentially embarrassing. This is especially common throughout puberty. While some sebum is good, too much can lead to problems and should be taken care of. When removing excess sebum from the genital area, be gentle.
Bathe every day. Excess sebum builds up over time, so the skin on and around your penis should be washed every day. Also, dirt and sweat builds up when the skin is not cleansed on a regular basis, thereby blocking pores and creating unwanted pimples.
Use a washcloth with a mild, noncomedogenic soap to gently scrub the genital region. Make sure to clean all areas of the penis, including creases and areas where the skin meets.
Dry the area of the penis with a clean, dry towel as thoroughly as possible. Water that sits for a long period of time can create excess moisture and sweat and defeat the entire purpose of washing in the first place.
Wear breathable underwear and bottoms made out of fabrics like cotton. These will allow sweat to evaporate more thoroughly and thereby reduce the amount of sebum the glands in your genital region produce. Remember that sebum is created to waterproof skin and hair and your glands will work hard to make up for excess water and sweat.