To receive a diagnosis of Kawasaki disease, a child usually will have a fever greater than 102.2 F (39 C) for five or more days and at least four of the following signs and symptoms. 
A rash on the main part of the body or in the genital area
An enlarged lymph node in the neck
Extremely red eyes without a thick discharge
Red, dry, cracked lips and an extremely red, swollen tongue
Swollen, red skin on the palms of the hands and the soles of the feet, with later peeling of skin on fingers and toes
 The symptoms might not occur at the same time, so it's important to let your child's health care provider know about a sign or symptom that has gone away. Other signs and symptoms that might develop include: 
Abdominal pain
Diarrhea
Irritability
Joint pain
Vomiting
 Children with a high fever for five or more days who have fewer than four of the above signs and symptoms might have what's known as incomplete Kawasaki disease. Children with incomplete Kawasaki disease are still at risk of coronary artery injury and still require treatment within 10 days of the onset of symptoms. Kawasaki disease can have symptoms similar to that of multisystem inflammatory syndrome in children, which has occurred worldwide in children with COVID-19. Children with these symptoms will likely be checked for COVID-19, as well.