In most cases, no treatment is needed for sebaceous cysts. The cysts are usually small and are not bothersome at all. Sebaceous cysts may disappear on their own. Or they may remain in the same place at the same size without causing any problems.
Some cysts are annoying because they rub against clothing. They may be unsightly or may become infected. In these cases they may need to be drained with a small incision. Larger cysts may be removed entirely. The cyst and the sac around it are removed to prevent recurrence.
Oral antibiotics, such as cloxacillin or erythromycin, may be given as part of the treatment for an infected cyst.
Antibiotics can cause rash, stomach upset, or allergic reactions. Surgery to remove a cyst can cause bleeding, infection, or allergic reaction to anesthesia.
There are few complications from sebaceous cysts. An untreated cyst can cause a skin abscess, or infection in the underlying soft tissue. Cysts do tend to recur, even when the sac has been removed. If even a small portion of the sac is left, the cyst can recur.
Sebaceous cysts can be monitored by watching the size of the cyst and noting any redness or swelling that may indicate infection. Any new or worsening symptoms should be reported to the healthcare provider.