Most healthy kids get sick once in a while.
No matter how well you take care of yourself, you can't always avoid germs that others are carrying. Some common illnesses and conditions caused by germs are acne, athlete's foot, bronchitis, chicken pox, colds, croup, ear infections, head lice, influenza, step throat, tonsillitis, and warts. Acne is caused by bacteria and oil in the skin that clog the pores, which then become inflamed. You don't have to be an athlete to get athlete's foot. Sneakers worn without socks make the ideal environment for fungus growth.