I'm using Fenben' on my dog at the mo', to sort out her long time (many yrs) skin/itchy/parasites Issue, Vet's all failed to detect anything, or were even willing to do the skin scrape I'd made the app' for. Thankfully though my brother recently helped me out by explaining the dose of FB my dog required and even ordered it for me🙏, it's been a few months now, her coat started looking worse to start with (parasites dying & her body working at getting rid of the of toxic dead bodies I assume, but each day now her coat is looking better. It's a real shame that I didn't know this yrs ago, cos' she'll be 14yrs old come spring, so not much life left to enjoy her new comfortable skin.
I'd Love to put Dog (& Me) on some Ivermectin but getting hold of it in the UK is one problem I have and working out dosages is anther big can't do for me..😔