Hello Grandma Ha- I have COPD too. I have emphysema and had chronic bronchitis.
I went for a clinical trial for the bronchitis at Temple Hospital in Philadelphia. It was a one year study using the RheOx treatment for bronchitis. It uses a thermal wand to zap the mucus plugs in the lungs & 1 year later I found out I’d gotten the real treatment and the bronchitis is gone. Will it stay gone - hopefully yes - but my lungs sound great according to both Temple & my own awesome pulmonologist. I don’t know if trials are ongoing but I’m glad I did it and will continue researching clinical trials for COPD.
God bless
https://galvanizetx.com/the-rheox-system/