This might be helpful to summarize a few highlights and (probs aggressive) concerns, since it's getting real day by day.
If warmer weather negatively impacts COVID-19, that will contain the virus in the next 4-5 weeks, but numbers will go up at least in the next week or so, because of lag effects. Thereafter, the daily growth rate will slow down, given the measures being taken around the world.
For anyone with prior asthma conditions, I think it's best to err on the side of caution, and stock up on inhalers, peak flow meters, and O2 saturation meters. Imaging (like chest x-rays etc) is also very important to ensure that no case becomes severe. For those in the US, since Quest and Stanford are trying to ramp up their capabilities only now, you can also look at QBio (https://q.bio/), a startup that offers quick imaging facilities.
If you think you do have the virus, the hard part is NOT treatment, but actually getting tested for it. So, it'll be helpful to have a word with your primary care physicians or even enroll in a concierge service to make sure they get you tested.
For people whose parents are above 50, the fatality risk is 5-10%, and for those who're above 60, the fatality risk is 15%.
For anyone who's ultra-concerned, have a look at this paper (https://www.ncbi.nlm.nih.gov/pubmed/32150618), which basically says that Chloroquine, 500mg 2x/day for 5 days is a potential drug for treatment. Best to get this one, if at all you want to prepare for the last resort.
Hope this was helpful!