Oh yeah bro, it is hardcore. I'm normally super logical, cybersecurity analyst, etc.
Something happens to your brain when you realize bugs are crawling in your skin. They feel like tiny itchy drillbits that wiggle around while digging their tunnels. I could feel them in my dick, jumping on my face at night, it never stopped. It was a fucking nightmare 24/7.
People OD on ivermectine or permethrine after they've been cured of the parasites so hospitals are familiar with it. Check the amazon reviews lol. Very few horses are actually eating it. It's made to squirt like half the tube in a horse's mouth, so it's not homogeneous. People are likely eating "hot spots" with high concentrations.