Kawasaki disease, also known as mucocutaneous lymph node syndrome, can cause damage to the coronary arteries in untreated children, so it is crucial to treat the disease promptly once diagnosed. This disease generally occurs sporadically or in small outbreaks and can occur in any season, predominantly affecting infants and young children. The main treatment for Kawasaki disease is aspirin, which not only reduces fever but also helps reduce coronary artery lesions. Additionally, intravenous immunoglobulin is administered; however, the use of corticosteroids in Kawasaki disease is still somewhat controversial. Other treatments mainly include antiplatelet aggregation agents such as dipyridamole, and symptomatic supportive care for the child, including fluid supplementation, heart protection, control of heart failure, and correction of arrhythmias. For severe coronary artery lesions, coronary artery bypass surgery may be required. (Please use medication under the guidance of a professional physician.)