Have posted before about my elderly dad who did smoke but also worked with paint for all his working life and never wore a mask. He's had 11 days at home since end November and we are giving up hope. He's had a few episodes of racing heartbeat and lost a lot of weight. IV antiobiotics work but infection returns within days. They say he isn't end stage and not ready for oxygen at home. I dread to think how much worse this condition can get. Any suggestions welcome.