10 Symptoms of Staph Infection

3. Swelling and Tenderness

Swelling and tenderness are common in a staph infection of the skin. If a sore, boil or lump does not appear after the skin has been red and tender, it may be a sign of Cellulitis. Cellulitis is when there is a bacterial infection within the layers of skin, fat, and tissues that lay beneath the first layer of skin. The affected area progresses to becoming hot, painful and even blistered. It can also make you feel rather unwell and experience nausea and other flu-like symptoms.