About the expert Sasha Ross, DMD, MS, is a board-certified periodontist who has been with the Cleveland Clinic since 2013. She earned her dental degree from the Harvard School of Dental Medicine and ...

Cellulitis is a bacterial infection of the skin and subcutaneous tissues that affects all age groups. Erysipelas, necrotizing fasciitis, and periorbital cellulitis are the 3 types of cellulitis.