Hi thumper guy - My lung specialist was straight down the line with antibiotics. My alternative doc gave me supplemeents which she gets from New Zealand probiotics the days I am not taking antibiotics, and several hi quality others. I have used oil, and even though the main eating plan is vegan, she recommended salmon/seafood 70 grams 3 times per week and up to 100 grams, and two eggs, the rest is mostly plant based, which I have been experimenting with, some fails (taste) and others work. Salads, root veggies, lots of berries and nuts, almond milk (formerly loved dairy). I have only been on that style of eating for 9 months. The cavity had diminished by 3/4 8 months back, but closed over 4 weeks back. Also doing a fair bit of Spiritual reading and audio. on youtube.