When bacteria infect the skin, it can cause rash known as cellulitis. The bacteria belonging to the group of staphylococcus would cause cellulitis infection and it usually attacks the person when there is development of crack or cut in the skin. The skin of the infected part will become red and hot associated with pain.
If the person has history of breakage in skin or wounds in any part of the skin he is prone to cellulitis infection. For instance a cut or cracks on the skin will increase the risk of bacterial infection. Usage of corticosteroid drugs for long time would suppress the immunity of the person leading to infection. People who have peripheral vascular disease have more chance for getting infected.