myrasol_2004, i've got a similarly aged child, and since sending to preschool, same thing -- always getting sick. If after multiple courses of oral and injectable antibiotics i would worry about the side effects too. ask your doctor if she really needs them or if it's just to be extra careful, because sometimes these are viral infections which go away on their own. Don't despair, try to fight those negative thoughts, and overcome the draining helplessness by asking for more help from both your doctor and your friends. Don't give up! It's hard but totally worth it when your child is feeling better!