This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psoriasis, Subject name: Dental
[{'content': 'A 35 year old man taking steroids for a long time on withdrawal developed fever and generalised pustules all over his body, what can be possible cause? \nSelect and explain. \nA. Drug eruption, B. Bacterial infection, C. Septicaemia, D. Pustular Psoriasis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pustular psoriasis develops on -1. Withdrawal of systemic coicosteroids2. Application of contact irritants like coal tar, dithranol', 'role': 'assistant'}]