This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Scabies, Pediculosis, Subject name: Dental
Drug not causing exanthematous skin eruption 
Select and explain. 
A. Phenytoin, B. Hydrocoisone, C. Ampicillin, D. Phenylbutazone
B: Hydrocoisone
Answer: B: Hydrocoisone 
Explanation: Drugs causing exanthematous eruptions are penicillin, sulfonamides, anticonvulsants, anti tubercular , allopurinol, nevirapine, phenylbutazone. Hydrocoisone is a coicosteroid is used for the treatment of severe drug reactions but will not induce exanthem