Skin inflammation is a broad term that encompasses a variety of conditions, including DERMATITIS and erythema. DERMATITIS is a general term for skin inflammation that can be caused by allergies, irritants, or other factors. It is characterized by redness, itching, and sometimes blistering. Erythema is a type of skin inflammation that is characterized by redness of the skin due to increased blood flow. It can be caused by sunburn, infection, or other factors.