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
Treatment of erythematous skin rash with multiple pus lakes in a pregnant woman is: 
Select and explain. 
A. Coicosteroids, B. Retinoids, C. Methotrexate, D. Psoralen with PUVA
A: Coicosteroids
Answer: A: Coicosteroids 
Explanation: A i.e. Coicosteroids