Only some antibiotics will cause issues. If you have to take alternatives to any of the "cillin" family, the medical community at large recommends no more than

Only some antibiotics will cause issues. If you have to take alternatives to any of the "cillin" family, the medical community at large recommends no more than 2 full treatments within 18 months. Anything more than that can lead to things like C. Diff and may require a fecal transplant or needing to take probiotics that a pharmacy will carry in a refrigerator up on their deck. I forget what the terminology is, but broad spectrum antibiotics are generally worse for your gut than something targeted, iirc.