About the expert Sasha Ross, DMD, MS, is a board-certified periodontist who has been with the Cleveland Clinic since 2013.

RELATED VIDEO: North Carolina Mom Has Foot Amputated After Discovering Tumor During Pedicure Cellulitis, also known as a staph infection, is a potentially deadly skin infection caused when ...

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.