is cellulitis infectious
Cellulitis isn't usually spread from person to person. Cellulitis is an infection of the deeper layers of the skin most commonly caused by bacteria that normally live on the skin's surface.You have an increased risk of developing cellulitis if you: 1  Have an injury, such as a cut, fracture, burn or scrape. 2  Have a skin condition, such as eczema, athlete's foot or shingles.ellulitis is an infection of the deeper layers of the skin most commonly caused by bacteria that normally live on the skin's surface.