Molluscum contagiosum is a virus that causes small white or pink bumps with a dimple in the middle, according to the Centers for Disease Control and Prevention. The bumps can appear in groups or individually. These bumps are usually painless, and disappear without treatment in six to 12 months.
Anyone who comes in contact with molluscum bumps can contract the infection, states WebMD. To keep the infection from spreading, don't scratch, do cover the bumps, and don't share towels or washcloths. Treatment for more stubborn infections includes topical therapy using acids or blistering solutions, freezing the bumps with liquid nitrogen, and laser surgery, says the American Academy of Dermatology.