Hemifacial Spasm From Lyme Disease: Antibiotic Treatment Points to the Cause.

A wide range of etiologies can cause hemifacial spasm (HFS), including infection. In this case report, a 44-year-old woman developed HFS and was explored surgically 7 years later. No abnormalities were found. Afterward, treatment of a surgical wound infection with an oral cephalosporin resulted in a temporary HFS remission that had never occurred previously. This antibiotic experience prompted further workup for an underlying infection, which ultimately led to diagnosis of Lyme disease. Presentation of HFS due to Lyme disease has not been reported. Because its diagnosis can be occult and antibiotic therapy can be both diagnostic and therapeutic, Lyme disease should be a consideration for cases of HFS.