Is Ivermectin safe and effective for treating adverse jab reactions?

There is a lot of evidence available for the effectiveness of Ivermectin and Hydroxychloroquine (with zinc etc) for treating Covid-19. But are those same treatment regimens safe for people with vaccine-induced heart and blood vessel issues?

I understand Ivermectin works by facilitating the entry of zinc into infected cells, with the zinc then disrupting virus replication and the cell then dying. But I think covid and the vaccine affect different body tissues. I don't think the covid-19 virus infects blood vessels or heart tissue, and so Ivermectin+zinc are not killing off infected blood vessel cells or heart cells because those tissues are not infected. But I understand the chest pain suffered by some jab-affected people is because those tissues (major blood vessels and heart tissues) are affected. If the Ivermectin+zinc then kills those cells, is that safe? Or, better question, is treating with Ivermectin preferable to not treating and leaving those tissues as they are?

I have a friend with never-before experienced "knife stab" chest and back post-jab pains, but none of the material I have seen online has addressed the issue of whether Ivermectin and Hydroxychloroquine treatment regimes are effective and safe for adverse jab reactions as well as for covid infections.

Does anyone know of a report or research paper that addresses this point?

Thanks.