Erythroderma is a skin disorder that results in widespread redness and inflammation of the skin. There are several synonyms that can be used to describe this condition, including exfoliative dermatitis, erythrodermatitis, and red man syndrome. Exfoliative dermatitis is a term that is often used to describe erythroderma when it is accompanied by scaling and flaking of the skin. Erythrodermatitis is another synonym for erythroderma that emphasizes the inflammatory nature of the condition. Red man syndrome is a term that is often used to describe erythroderma when it is caused by an adverse reaction to medication or as a response to infection.