I would say with many treatments and medication how soon you take it does matter. Amazing how many in hospitals had to fight to get treated with Ivermectin and got it days after being on a respirator. Respirators are hard on lungs, so are many of the meds they treat illnesses with. Is Ivermectin effective? I think it may be if taken early on.Yes, it may help Covid symptoms as part of a comprehensive medical regimen. Studies show this to be true, But to claim it’s a “proven cure” is crazy. Considering all the folks who took IVM & still died of Covid.