I am using natural therapy and have already noticed a difference after only 3 days. There is a FB group called End long Covid, patients of Dr. Jordan Vaughn. I don't know if you can be in it without being a patient, but it is worth a shot. My clots were grade 3. I am using the Nattokinase Serrapeptase and NAC off of Amazon, plus 40mg of famotidine all on an empty stomach. I am not a candidate for triple therapy because of my gastric bypass. My father in law beat cancer naturally using Zantac also, so I believe it can be done!