Extensive erythema infiltration damage with desquamation

Extensive erythema infiltration damage is accompanied by desquamation or erythroderma. Red skin disease, also known as exfoliative dermatitis, is a serious systemic disease. It is generally considered that erythroderma and exfoliative dermatitis are the same disease. The former is characterized by extensive and obvious erythema infiltration damage accompanied by pityriasis desquamation. There is extensive edema erythema, accompanied by a large amount of desquamation. Because desquamation is sometimes not obvious, the name of the former is considered better and more general. Skin involvement area ≥90% is a prerequisite for the diagnosis of this disease.