This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune Skin Disorders, Subject name: Skin
[{'content': 'Drug not causing exanthematous skin eruption - \nSelect and explain. \nA. Phenytoin, B. Hydrocortisone, C. Ampicillin, D. Phenylbutazone', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' i.e., Hydrocortisone Drugs causing exanthematic reactionsMost commonLess commonAmpicillin and penicillinCephalosporinsPhenylbutazone and other pyrazolonesBarbituratesSulphonamidesThiazidesPhenytoinNaproxenCarbamazepineIsoniazidGoldPhenothiazinesGentamicinQuinidineMeprobamate Atropine", 'role': 'assistant'}]