This patient support community is for discussions relating to lung and respiratory issues, allergies, asthma, bronchitis, colds/flu, chronic cough, COPD, cystic fibrosis, emphysema, fibrosis, lung abscess, nasal polyps, pleurisy, pneumonia, sarcoidosis, sinusitis, and tuberculosis.
I too was on O2 but then found that I had to go on BiPAP (bi level positive airway pressure) to rest my chest muscles that were trying to compensate for the paralyzed diaphragm. That did help.
Also there is another option, surgical plication of the affected diaphragm where the doctor tacks down the paralyzed side of the diaphragm to prevent it from moving up into your chest cavity thus allowing you to expand your lungs easier. I am by no means a doctor or specialist, just throwing ideas out there based on my experience with all of this. Some people have good results and lessening shortness of breath after this procedure.
As far as the MRSA, believe it or not, it is becoming more and more common to become colonized with this bug. Colonized meaning that it is there but not causing an infection. I colonized MRSA as well, I believe that I got it from repeated exposure to hospitals and ICU visits. Hopefully the nasal ointment got rid of your MRSA.
I hope that this helps and that you get some answers soon as far as O2 dependency and relief of your shortness of breath. I know how frustrated you are, scared too as I have been there. Sunny