Some snake oil treatments are very expensive and cause more harm for you and your family. For example, this was (is?) popular for breast cancer https://en.wikipedia.org/wiki/High-dose_chemotherapy_and_bon...

Ivermectin is a very used cheap and safe drug, so I don't expect many nasty side effects, but IANAMD, so ask a real medical doctor before trying.

No drug does nothing. That's kinda implied by the word "drug".

Go smoke some crack