Keep your family home until you talk to your doctor. If the doctor thinks your child's symptoms could be COVID-19, everyone in the household should stay home until testing is done or symptoms are gone. Check the CDC's website for details.
Keep other people and pets in the house away from your child as much as possible.
Try to have one person only care for the sick child so others are not exposed.
If your child is over 2 years old and can wear a face mask or cloth face covering without finding it hard to breathe, have them wear one when the caregiver is in the room. Don't leave your child alone while they're wearing a mask or cloth face covering. The caregiver also should wear one when in the same room. To see how to put on and remove face masks and coverings, clean them, or make your own cloth face covering, check the CDC's guide.
If possible, have your sick child use a different bathroom from others. If that isn't possible, wipe down the bathroom often.
Everyone in your family should wash their hands well and often. Wash with soap and water for at least 20 seconds, or use alcohol-based hand sanitizer.
Use regular household cleaners or wipes to clean things that get touched a lot (doorknobs, light switches, toys, remote controls, phones, etc.). Please do this every day.