This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
[{'content': 'Mahesh a 7-year old boy had itchy, excoriated papules on the forehead and the exposed pas of the arms and legs for 3 years. The disease was most severe in the rainy season and improved completely in winter. Most likely diagnosis is ? \nSelect and explain. \nA. Insect bite hypersensitivity, B. Contact dermatitis, C. Varicella zoster, D. Dermatitis herpetiformis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Insect bite hypersensitivity", 'role': 'assistant'}]