You're probably well aware how long a cold can linger in an adult body--a week or so. But did you know that when it comes to your newborn, the virus stays for 10 to 14 days? that makes it all the more important to treat your baby's symptoms properly. First don't give children under 2 yrs. old any over-the-counter cold medications without consulting a doctor, says the centers for Disease Control and Prevention ( CDC). Adult medicine, especially, is not for babies and it will cause of overdose. even medications made for baby are "not very effective, or in some cases, not effective, or in some cases, not effective at all" in relieving cold symptoms. Instead, keep baby hydrated. Continue to breastfeed or use formula, because proper nutrients are essential "Small, frequent feeds are the way to go. To unblock baby's nose and facilitate feeding, use SALINE nose drops bulb syringe or an electric nose cleaner cleaner like CLEANOZ ( ubimed.com ). Humidifiers in the nursery can help thin mucus, so baby will breathe better. Stop using the humidifier one the virus is gone, so you don't encourage mold growth.