I think the problem is that only testing people can really make a difference. Similar drugs like Oseltamivir (Tamiflu) and the controversial chloroquine (if proven) have to be taken ideally when you are asymptomatic (i.e. in the first days of infection), almost prophylactically to have any benefit- other drugs that are nebulised may also be effective but these need a clinical setting to be administered. Only testing, tracing and isolating/ treating will have a dramatic effect on curbing the problem. Hopefully the vaccine will have few problems in its development, and hopefully this strain does not have significant genetic drift over time otherwise its back to square one. This too is a gamble, it may mutate into something milder to spread better (or it may not).
One thing that is clear, the world has changed- the unthinkable has happened and now there will be a public clamour for lessons to be learned.
UK scientists are talking about an easy test being available in large numbers within a few days, works on a single blood drop and operates like a pregnancy test. Shows if you've had it as well as if you have it.
That would allow people proven immune to leave quarantine.