Final answer:
The treatment for Kawasaki syndrome is a combination of aspirin and IVIG, typically lasting several weeks. It is most commonly used in children.
Step-by-step explanation:
The treatment for Kawasaki syndrome (acute systemic vasculitis) is usually a combination of aspirin and intravenous immunoglobulin (IVIG). This treatment is most commonly used in children. It typically lasts several weeks. In addition to this treatment, the American Heart Association also recommends prophylactic antibiotic treatment depending on the patient's age and risk for reinfection.