Katrina
No matter which antibiotic your wife takes, please consider this: when one takes antibiotics, they destroy not only the bad bacteria but also the "good." This good bacteria, or friendly flora (in the stomach) is a necessity to maintain a healthy digestive system and so on. It's a good idea to replace & maintain this flora (when one takes antibiotics) and that can be accomplished by taking Acidophilous caps. Acidophilous is found in yogurt, too. You can get the caps in health food store, refrigerated area. Keep them in your 'fridge at home, too. Of course, check with the Dr. on this. He/she may ask your wife to not take them until the antibiotic series is over with. In any event, I don't see how eating some PLAIN yogurt daily, a couple spoons, at least, can hurt. Please look into this, I have seen positive results. Good luck! I hope she feels better very soon.