Postauricular epidermoid cysts: treatment with electric current.

We believe the use of electric current to treat epidermoid inclusion cysts in the postauricular area is a simple, effective method that results generally in prolonged decompression of the cyst. The length of time that the fistula remains patent is unknown at present. Local control is, however, prolonged and may be permanent. Over time the induration subsides and the sac atrophies.