Dry air can clog up stuffed nasal passages, making it hard for your little one to sleep or eat. Dr. Jana is a big fan of steam. “I have young kids sit in the shower, or tell parents to get into the bathtub with their babies,” she says. Monitor the water temperature and never leave your child alone. At bedtime, a cold steam humidifier can moisten the air and help kids sleep. Steam is especially good for helping children with barking, croupy coughs catch their breath. But if after a few minutes in the bathroom your baby still isn’t breathing easily or is turning blue, head straight to the emergency room.