There are many ways to deal with babies when they have a cold. usually a fever indicates a viral or bacterial infection. Babies can't take cold medicine or decongestants but they can have a few simple things to make it easier to breathe. the number one is the simple baby nasal saline saline will help clear the airways. parents can squeeze salt into each nostril to be able to relieve mucus. if the baby is really congested and bad things may prefer to sleep upright help them feel comfortable extra culddles, extra food and if it gets worse need to talk to your doctor and have him checked right away.