Your best chance of avoiding complications from the virus should you get sick is to keep your lung disease under control with your prescribed maintenance medications. For instance, if asthma is well-controlled, it reduces the risk of developing serious complications from COVID-19.
Reports of asthma medication shortages have been making the rounds. The American Lung Association advises anyone with chronic lung disease: do not ration medications. It is vital you continue taking your medications as prescribed unless otherwise advised by your health care provider. If you are running low, make sure to speak with your health care provider about options so you can continue taking your medication(s) without interruption. If your insurance permits it, get a 90-day supply. Consider ordering your medication from a mail-order pharmacy to maintain social distancing and reduce your risk of exposure to the virus.
Source American Lung Association