35 yrs age male pt c/o burning sensation in the affected area. pls suggest diagnosis and management.

a 40yrs old farmer is suffered itching since 15days RX AND DX

50yrs/M, by Profession he is a Porter, having these kind of flaky, dandruff like scaly, burning n pruritic lesions on Face, neck n both dorsum of hands(mild edematous), for last 4 -5yrs. Burning senHe is chronic alcholic What is these lesions? Photodermatitis or Seborrheic Dermatitis or Psoriasis? or Anything Else..???

This Qs is specially for MBBS student. Identify the skin lesion and what does it signify? This lesion was seen in an 18 year old boy.

70 years old women complaining black patches and peeling of skin since 1 month. diagnosis and treatment? What is the cause ?