What are the symptoms of cellulitis and signs?

Redness and swelling: Redness, swelling, edema, increased warmth, fever of the skin.

Infected/inflammed: Cellulitis is simply an inflammation of the skin ("itis") that can be caused by many factors including infection, or anything that causes inflammation like sunburn or vein disease.. Inflammation means the tissues are red, hot, swollen, and tender. Antibiotics should not be used unless it is absolutely infected which should involve more than simply the presence of inflammation.