All that matters at this point is effective anti-virals, and aggressive use of them before the virus or immune response damage the patient's lungs to the point that they need ventilation/ecmo.
We can't afford to wait 18 months for a vaccine.
The assumption that world wide medical professionals are not looking for some magic bullet anti-viral? Asinine.
The assumption that there is some magical anti-viral cocktail that medical professionals aren't using? Asinine.
We can't afford to give credence to mindless twits who are listening to Alex Jones/Fox News/Conspiracy du Jour and implying all we have to do is take up one of these fake news/fake cure woo and the problem is solved.
If there was an easy answer, life would be back to normal.
It's not that easy.
It's also quite likely (the norm, in fact, for viral diseases) that they aren't. It's not “we have antivirals we just have to find the right combination”, it's “we might get lucky and have a combination of an existing drug or combination of existing drugs that are effective”. As I said upthread we ought to be (and are) pursuing both approaches, vaccine and antiviral, not treating one as both certain and quicker and focussing exclusively on it, as another poster suggested upthread for antivirals.