Dermatology

A 16-year-old has mild comedonal acne (open and closed comedones, no inflammatory lesions). What is the preferred first-line topical agent?

For mild-to-moderate inflammatory acne with papules and pustules, what topical combination reduces antibiotic resistance?

What program governs isotretinoin prescribing because of its teratogenicity, and when is isotretinoin considered?

Which oral therapy is a reasonable hormonal option for acne in women with no contraindications?

A 3-year-old has chronic, intensely pruritic, ill-defined erythematous patches in the antecubital and popliteal fossae. What is the likely diagnosis?