Children in their first six years encounter a wide range of new experiences. Unfortunately, many of these involve a heightened risk to their well-being, from catching the flu at school to coping with the emerging symptoms of a persistent condition such as asthma or ADHD. Here are 5 different medical expenses for parents to look out for. Contagious Illnesses While sending your child to day care and school is a natural part of introducing him to society, it also means joining the herd as far as infectious diseases are concerned. Sicknesses like the common cold and chickenpox will eventually reach almost every child. While these are usually neither serious nor expensive in terms of treatment, they can force parents to stay home from work to provide care. If you haven't already stocked up on some basic pain relief medication such as Tylenol for kids, it would be a good idea to do so...