How to Boost Your Child’s Immune System: What You Need to Know to Strengthen Your Child’s Immunity and Prevent Illness Parenting does not have to include frequent trips to the doctor with ear infections, numerous colds, flu and other illnesses. There is a lot you can do, inexpensively at home, to create vibrant health and vitality and prevent disease with healthy immunity. Please enter your name. Please enter a valid email address. Yes, show me! Something went wrong. Please check your entries and try again. You will be subscribed to the Healthy Child Newsletter and periodically receive expert advice to keep your kids healthy. We'll Never Share Your Email. Ever.