cellulitis usually affects the what layer of skin
Cellulitis is an infection of the deeper layers of the skin and the underlying tissue. Cellulitis is an infection of the deeper layers of the skin and the underlying tissue. The main symptom of cellulitis is the affected area of skin suddenly turning red, painful swollen and hot. Cellulitis can have a wide range of causes, but the majority of cases are caused by a type of bacteria called group A streptococcus, or a different type of bacteria called staphylococcus aureus.