Too many "promising" studies like cannabis, vitamin D, chloroquine, ivermectin, etc have been later fact-checked by the CDC as bad science, to rely on anything but the CDC's word (or Fauci). Until the CDC says so I won't believe it. Right now it seems like mass vaccination is our only way out of this pandemic and back to normal.
The same CDC that said early on that we don't need masks when the WHO advised them. It wasn't to keep the general public COVID free, it was to make sure there were enough masks for healthcare workers. CDC incentives aren't aligned with individual health, it's more for social health and getting people back to work without maxing out healthcare systems.
The scientific community should be fact checking and reproducing these studies.
The thing with cannabis, vitamin D, ivermectin, they have been around for years and have low risk profile in human use with billions of doses. Even if it is experimental and there aren't long term studies, all the science for mRNA vaccines in humans is new and there are no long term studies. So why not throw everything at the pandemic instead of hoping and dreaming for vaccines alone to save us.
We are a few mutations away from omicron contagiousness with delta symptoms. I don't see how vaccines alone are going to stop this thing. This current wave is not dropping to zero.