Which one of the following is the treatment of choice for Kawasaki's disease ?

Kawasaki disease is a vasculitis that mostly involves the coronary vessels. It presents as an acute systemic disorder, usually affecting children under 5 years. It occurs mainly in Japan and other Asian countries, such as China and Korea, but other ethnic groups may also be affected. Presentation is with fever, generalised rash, including palms and soles, inflamed oral mucosa and conjunctival congestion resembling a viral exanthema. The cause is unknown but it is thought to be an abnormal immune response to an infectious trigger. Cardiovascular complications include coronary aeritis, leading to myocardial infarction, transient coronary dilatation, myocarditis, pericarditis, peripheral vascular insufficiency and gangrene. Treatment is with aspirin (5 mg/kg daily for 14 days) and IV Ig (400 mg/kg daily for 4 days) . Ref Davidsons 23e p1041