Breathing warm, moist (wet) air helps loosen the sticky mucus that may be choking your child. Other things that may help include:
Placing a warm, wet washcloth loosely over your child's nose and mouth.
Filling a humidifier with warm water and having your child breathe in the warm mist
Do not use steam vaporizers because they can cause burns.
To bring up mucus from the lungs, tap your child's chest gently a few times a day. This can be done as your child is lying down.
Make sure everyone washes their hands with warm water and soap or an alcohol-based hand cleanser before they touch your child. Try to keep other children away from your child.
Do not allow anyone to smoke in the house, the car, or anywhere near your child.