If yo still have Covid; Strains that are dominant in Beta Caryophyllene are a good idea to try out. I had it last year and didn't qualify for the meds they have, but I did have a shit load of Motor Breath, which I mixed with Skywalker and Detroit Lemonade, and I think some Chem D, and my cough stayed productive for the most part. Cheese strains would be a great idea too; When my allergies are really kicking, Blue Cheese helps me cough up a lot of shit in my lungs.