I had pnumonia twice back in the 90's. Got nasal surgery and took alergy shots for several years. Now they have a pnumonia shot that lasts about 5 years. I got one a couple of years ago. I get a flu shot every year. Now I hardly ever get sick, not even a cold in the winter. With the bad allergies, I got rid of carpet and put down hardwood and tile flooring. Put the cats outside, use a hepa filter in the forced air systems. Also, avoid the foods I am supposed to be allergic to. Feel much better, breathe much better. I use a mask when cutting grass, painting, fixing something under the house, etc. Not always comfortable with one, but I avoid getting sick. I am supposed to be allergic to peanuts, and I love parched peanuts, peanut butter, and Reeces cups. Had to give them up. Also alergic to crab? which I hardly ever ate. Take care, and check into getting the pnumonia shots.