I am sorry that you are having to go through recovery.
Treatments that you can buy without a prescription are
PepcidAC (generic name Famotidine) 4 tablets taken three times a day. Take some Miralax along with Famotidine because there can be constipation.
Melatonin two 3 mg doses per day.
You could ask your MD to prescribe Luvox (generic name Fluvoxamine) which has been found in a clinical trial to help Covid-19 patients who are recovering at home.
Researchers compared the outcomes of those treated with fluvoxamine to the outcomes of those given an inactive placebo. After 15 days, none of the 80 patients who had received the drug experienced serious clinical deterioration. Meanwhile, six of the 72 patients given placebo (8.3%) became seriously ill, with four requiring hospitalization.
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It might be helpful to have someone buy for you a cheap fingertip oximeter
