Kawasaki disease is usually caused by bacteria or viruses that the child comes into contact with.
The child may touch something with their hands that has the bacteria or virus causing the Kawasaki disease and then touch their face.
Then after the child touches their face they likely get infected with the Kawasaki disease.
Certain genes also make your child more prone to getting Kawasaki disease but the actual cause is not 100 percent known as of now.
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.