Hm yeah I thought it could be that, do you suppose I should stop applying it completely right away? I did stop for a week but nothing changed with the palpitations. It's been the only thing that has worked on my skin... I started with it after trying everything natural I could possibly think of that supposedly works on demodex - borax, tea tree oil, zinc oxide, neem oil, sulfur, diatomaceous earth, brewers yeast supplements, oregano oil supplements and more, everything. It would be awful to go back to the bad skin I had before. I don't know how long I am supposed to put on ivermectin anyway though. But I guess I was just hopeful it was just from not taking the co-supplements regularly since that's easy to fix. And I should do that anyway!