Eczemas are basically segregated or differentiated depending on causes and depending on the duration. So depending on duration we called it as acute Eczema and chronic Eczema. Depending on these cause we called this as atopic dermatitis and nummular eczema, then allergic contact dermatitis, irritant contact dermatitis. So all these comes under Eczematous changes only.so eczemas only divided only basically depending on the type. It is called as seborrheic dermatitis, then dyshidrotic eczema, neurodermatitis, and stasis eczema.
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