As a wee child, from ages 2-4, my poor tiny urinary tract became infected more times than I can count. And during each of these UTI’s I was put on antibiotics. Throughout my childhood, a few times every year, my sister and I would come down with strep throat. Again with the antibiotics. And throughout my 20’s and 30’s, those nasty UTI’s (and even a few kidney infections) came back with a vengeance. I have many patients with similar stories, though sometimes it’s more about sinus or ear infections, or even infections in the lungs (like pneumonia) or intestines (c. diff or food poisoning, for example).