27 yr lady came with lesion.as shown in images.itching and swelling present.gradually it increasing in size.diagnosis and treatment plz??

Baby of 5 month having macular eruption over face nd some papular eruption Duration 1month ?? Atopic dermatitis or ?? Seborrheic dermatitis or any D/d

72 yr male with history of itching and skin lesions since 5 month's,Not taken any treatment.Diagnosis and management?

40 years old non diabetic female presented with lesions as depicted in images over hands, hip, feet ,abdomen and a scalp with itching. The lesions look crusty .Initially I thought they were psoriasis but now since the lesions have spread and crusty in nature, what could be the diagnosis and also management, because I'm unable to arrive at the diagnosis .Will skin biopsy help? Please guide me with proper treatment as eell

17 years boy. Such lesions for last 6 years. C/O- Severe itching with discharge. Diagnosis and treatment.