DEAR DR. ROACH: I understand that the overuse of antibiotics can harm the good bacteria in the intestinal tract, as well as the bad. While I don’t feel that I am abusing antibiotics, I have been prescribed two courses in the past five years. I wonder what action can be taken to try to ensure that balance in my gut is restored. — M.L.
ANSWER:We are just beginning to understand the beneficial effect of…



