Diagnostic Criteria for Subacute Eczema
Following resolution of acute inflammatory lesions and reduced exudation, the condition persists with lesions primarily characterized by papules, scaling, and crusting. Only a few papulovesicles or erosions may remain, or mild infiltration may be present.
Diagnostic Criteria for Acute Eczema
1. Acute onset with lesions comprising erythema, papules, and vesicles. These cluster into patches, often becoming eroded, exuding, crusted, or suppurating due to scratching. Borders are indistinct, and distribution is frequently symmetrical.
2. Intense pruritus.
Diagnostic Criteria for Infectious Eczematous Dermatitis
1. Primary suppurative foci are present near the affected area.
2. Lesions expand peripherally from the suppurative focus, manifesting as erythema, vesicles, pustules, erosion, and crusting.Progression is rapid and asymmetric, often forming band-like distributions along scratching directions.
Diagnostic Criteria for Chronic Eczema
1. May develop from recurrent acute eczema or present chronically from onset.
2. Predilection sites include face, behind ears, elbows, popliteal fossae, lower legs, vulva, and perianal region, accompanied by intense pruritus.
3. Skin lesions are relatively localized, with marked thickening and infiltration, well-defined borders, and often accompanied by hyperpigmentation.
4. The course is chronic, frequently with acute exacerbations.
Diagnostic Criteria for Auto-Sensitive Eczema
1. Prior to onset, eczema is often present in a specific skin area.
2. After 7–10 days, numerous scattered papules, papulovesicles, and small vesicles suddenly appear throughout the body, distributed symmetrically with isomorphic reactions.
3. After the primary lesion improves, the generalized skin lesions naturally diminish and resolve.