See exfoliative dermatitis

any skin disorder involving abnormal redness

Abnormal skin redness over wide areas; exfoliative dermatitis.

Abnormal redness of the entire skin surface. Erythrodermic psoriasis- Appears as a widespread periodic reddening of the skin with fine scaling. Can be accompanied by severe itching and pain.

An abnormal reddening, flaking and thickening of the skin, affecting a wide area of the body.

diffuse reddening of the skin, caused by one of many disorders including psoriasis, eczema, drug sensitivities, and lymphoma

Erythroderma occurs when a skin condition affects the whole body or nearly the whole body, which is red all over.

Erythroderma is defined as a generalized skin disorder characterized by reddening and scaling of 100% of the skin. It is also known as erythrodermatitis, generalized exfoliative dermatitis, and red man syndrome. There may also be normal areas of skin present.