Hi, I have some fenbendazole/safeguard resistant gapes. So unfortunately I had to treat with Safeguard for 6 days before realizing this. One of my hens is older and is on milk thistle for a "sensitive" liver. I had to switch to Valbazen for three days (so 9 total days of wormer over a 11 day period, which is horrible and unfortunate but hindsight is 20/20 and I had no idea the gapeworms here were resistant until the 6 days were up) to knock out the gapeworm. But I have to repeat worming in 10 days per directions. Is there anything easier on the liver that I can use for her that will tackle gapes? Is there anything at all natural to try to at least prevent the next round of eggs hatching into adults? I know natural meds won't *treat* gapeworm, but at this point I have treated the gapeworm and just need to *prevent*. Or like I said, a very very gentle wormer on the liver. My beautiful white cochin is so precious to me. Thank you.