Assess atopic dermatitis severity.
SCORAD = A/5 + 7B/2 + C. A = extent (0–100% BSA). B = intensity (erythema, edema, oozing, excoriation, lichenification, dryness; each 0–3, max 18). C = subjective symptoms (itch + sleep loss, each 0–10). Mild < 25. Moderate 25–50. Severe > 50. Maximum score 103.