An epidermal cyst, which is a skin-oil filled bump, forms in the deeper layers of skin when a follicle becomes blocked. They can be uncomfortable and unsightly but are harmless (benign). If infected, a cyst may require treatment with antibiotics. Patients with large or painful cysts may require minor surgery.
There are other types of cysts that your dermatologist may diagnosis, they are usually equally harmless and can be removed as well.
A small incision is made in the area of the cyst after injection of local anesthesia then the cyst and surrounding tissue will be removed. A stitch or two may be needed. Most cysts do not return. Patients are left with a small scar after a cyst is removed.