The incubation period varies from several weeks to several months. Shaving or scratching may cause the infection to spread. If scratched, the bumps can become infected with bacteria. The diagnosis is based on the typical appearance of the bumps. No diagnostic test for this virus is available.
Treatment is done for aesthetic reasons and to prevent spread of the virus.
The goal of treatment is to remove the soft center, after which the bump goes away. Freezing the lesion with liquid nitrogen or nitrous oxide is an alternative treatment. There is a slight risk of minimal scarring. Observe for signs of infection that include redness, swelling, pus-like drainage, or increased soreness at the site. If you are concerned about any difference in your treatment plan and the information in this handout, you are advised to contact your health care provider.