A 7-year-old boy with a history of atopic disease presents with itchy, dry, erythematous patches in the flexures of his elbows and behind his knees. Skin is lichenified from scratching. What is the most appropriate first-line topical treatment?APotent topical corticosteroid for continuous long-term useBMild to moderate topical corticosteroid for short courses plus regular emollientsCTopical calcineurin inhibitor as first-line in all childrenDSystemic corticosteroidsETopical antibiotic aloneCheck my answer