I have been posting that exact idea:
My wife and I, both in our sixties, had COVID-1984 in January/February of 2020 before it had a name and survived it without doctor visits or drugs, and I have the IgG and IgM antibodies to prove it.
Luckily, we were too dumb to run to a hospital so they could hook us up to ventilators and kill us.
It was the worst flu of our lives in terms of crap in our lungs, and it took months to cough it all up, which is key.
You have to cough until you are worn out, but you have to get your lungs clear.
Hooking somebody up to a ventilator prevents coughing and the crap continues to accumulate in their lungs until they die.
It's as if they want to kill people.
Stay away from hospitals if you get it and want to live.
I wonder if something like mucinex would help with clearing the lungs? Maybe someone who has tried it can chime in