Invermectin has been tried and tested for humans for decades. It's main feature is that it will block the protein spike of ANY Covid variant, hence if utilised at an early stage, will reduce the effects of the virus.
However, there are side effects, one of which is it increases blood INR by interacting with warfarin. But so does alcohol.
For me, I caught Covid last December and suffered from a higher (normal range) blood pressure reading, weak headache, loss of taste and smell, and for three days I felt like living in a fridge - couldn't get warm. It attacked only the biggest organ in my body, my skin arms and legs modestly covered in blisters which went away after a week, leaving my skin in good shape, presumably because my DNA mutated to destroy it.
I trust I now have antibodies that would repel any further infections, so I'm going down that natural route rather than being a guinea pig for big Pharma. As I see it, people who have had mild infections are in a better situation than risking worse and unknown side effects from vaccines that have not tried the test of time.
BTW, my immune system is benefitted by daily ZINC, D3, Vit B&C. on top of a whole food plant based dietary regime. Covid certainly doesn't work effectively with a D3 strength pitted aginst it.