It may help to give your child asthma-type medicine. Your child may need to take medicine prescribed by your doctor. Keep up with the medicine until your child does not wheeze for 24 hours. Use a humidifier. Moist air can help.
Dry air tends to make coughs worse.
Make sure your child's nose is not blocked up. If the nose is blocked up, your child will not be able to drink from a bottle or breast-feed. Put three drops of warm water or saline in each nostril. After about 1 minute, use a soft rubber suction bulb to suck out the mucus. Make sure your child drinks enough fluids.