<prompt> A 27 year old male has itchy, excoriated papules on forehead and exposed pas of arms and legs for 3 years. The disease was most severe in rainy season and improved completely in winters. Most likely diagnosis is:ScabiesUicariaAtopic dermatitisInsect bite hypersensitivity  <response>: D i.e. Insect bite hypersensitivity Scabies Insect Bite Hypersensitivity Atopic Prurigo Age Any Children: if adults rule out underlying malignancy or HIVQ AdultsQ usually Morphology Burrow PathognomicQ Papulo-vesicles itchy Papules surmounted with vesicles or hemorrhagic crust itchy Papulonodules pruritic Distribution Webs of fingers, wrist, periumbilical area, genitals and thighs Exposed pasQ mostly on legs Flexures mainly; face relatively spared Family history Present similar lesions Absent FH of atophy, dry skin etc. present Worsening Summerrainy Rainy season sundryQ, change in temperature, woolen clothingQ 