its always a balance between the positive effects they give and the negative effects antibiotics cause. I dont think if a medicine is natural it is necessarily better for you, a lot of these things carry their own side effects, we often dont know what they are because these products are untested. the tetracyclines are relatively safe and well tested antibiotics, like minocycline, deoxy. i dont know if they would help. i have a friend who claims flagyl really helps his reactive arthritis, so this is what i mean with the balance thing.