I'm not a medical expert. But I have my share of successes. The only reason I voiced a suggestion is because I read desperation behind OP's lines. That's it. A

I'm not a medical expert. But I have my share of successes. The only reason I voiced a suggestion is because I read desperation behind OP's lines. That's it. A moment of personal weakness caused by overwhelming human compassion. It's a generalized advice for a general person after suspected pneumonia. It is a good solid recommendation you would get from a practicing doctor, or even from any post-pneumonia patient who experienced shortage of breath. Please note how helpful it might be in life vs death situations when the list of other options is just empty. I presume that OP's wife condition is a form of post-pneumonia pulmonary fibrosis. The common wisdom of crowds in western countries suggests that there is no known cure. However if you care enough to intersect the lingual and cultural barriers, you will soon find out that the effective cures do exist. They come in form of physical rehabilitation: breathing and physical exercises are the main parts of it. In other words: moving your body will do a good favor for the tissues of your lungs. Open air and unobstructed airflow are big bonuses as well. Of course you can still deny everything I say. You can still be selfishly fulfilled by your comfortable ignorance.