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: Pharmacology
Treatment of choice for Kawasaki disease is : 
Select and explain. 
A. Intravenous immunoglobulin, B. Steroids, C. Azathioprine, D. Aspirin
A: Intravenous immunoglobulin
Answer: A: Intravenous immunoglobulin 
Explanation: All patients of Kawasaki's disease should be treated with intravenous immunoglobulin (IVIG).
Aspirin should be used for fever and inflammation. It should be continued if a coronary aneurysm develops.
Methylprednisolone should follow if disease symptoms persist after two injections of IVIG.
Drugs for refractory cases include infliximab, cyclophosphamide and methotrexate.