Before you get worse, talk to your doc and try to get prescriptions of the antibiotic and malaria drugs for both of you. Azithromycin (Zithromax) and Hydroxychloroquine (Plaquenil). They are proven to reduce effect of virus.
There are oxygen concentrators you may be able to get off craigslist or ebay just in case you have breathing problems:
Another option is a welding oxygen tank and regulator https://www.amazon.com/Lightning-Oxygen-Regulator-CGA-870-0-15lpm/dp/B01GGL08C6