The results for the vaccines remain mixed and confusing. At a minimum for most people the vaccines seem to give you a leg up on fighting the disease should you become infected but are not particularly effective at preventing transmission or infection.
Results for using Ivermectin as a treatment have been mixed as well but positive enough that the FDA authorized it's use.
https://www.fda.gov/news-events/pre...rizes-first-oral-antiviral-treatment-covid-19
This disease and it's treatment have been horribly politicized from the beginning and that is antithetical to good science and medicine.
Once the one sided political advantage of demonizing such treatments the FDA quietly authorized the use of Ivermectin to treat Covid-19.