I think others suggested Clear Lungs. I watched a Zoom meeting between an Craig Kelly an Australian MP and Dr Shankara Chetty, a GP in South Africa, who has treated over 7,000 patients and not one needed hospital treatment. Obviously there was a LOT of information in it, but what I picked up was that this doctor believed that people having Covid were suffering from an allergy in their lungs - something left over by the virus. He treated people with an anti histamine. Not sure if Clear Lungs has an antihistamine in, but if not, maybe one would help with the inflammation in your lungs.

I know after watching that video I did some research and bought some Night Nurse here - just in case.

Not a doctor, just sending my thoughts with healing love.