The reason aspirin is used in Kawasaki disease because the aspirin can ease pain and discomfort and reduce fever.
Aspirin is an NSAID which stands for non-steroidal anti-inflammatory drug.
Aspirin is very good at helping ease pain and discomfort in those with Kawasaki Disease and it's generally a safe drug to take.
Aspirin is very good for helping adults prevent heart attacks as well and helps thin the blood which can reduce the chance of blood clotting in people.
Some kids who have Kawasaki disease can take a baby aspirin and only give the recommended dosage of the baby aspirin to your child.