They may be red or scaly at the periphery, either from scratching or from the immune system's attempt to oust them. But they aren't easy to oust. Molluscum contagiosum can last months or even years, and the bumps spread easily from one part of the body to another, particularly if scratched. They also are highly contagious, as the name indicates. Also, as children get older, they're self-conscious about them.
Adults also can get the condition, though children are much more susceptible.
Left untreated, the bumps usually disappear in about six to nine months without leaving scars. But they can last much longer. Parents who notice the spots on their children should consult a pediatrician or dermatologist for a definitive diagnosis and to obtain treatment if desired, though lack of treatment presents no threat. A common treatment is the topical medication, Retin A, widely used to treat acne or wrinkles. The ointment is applied directly to the spots once or twice a day.