Cellulitis is a spreading infection of the skin caused by bacteria. The typical causal agents are two: the gram-positive bacteria Staphylococcus aureus ("staph") and Streptococcus ("Strep"). Other bacteria may also cause Cellulitis, such as the gram-negative Escherichia coli.
Hot and red spreading rash
Streaking may appear going toward the center of the body
Swollen glands may or may not occur
Fever
Usually evident on examination
Culture by saline injection and aspiration (rarely done)
