@sieglinde. I have found that I am able to control my phlegm with a timed release 250 mg tablet of Guaifenisin . I was buying Musinex to do it. Musinex has changed some of their formulas and it is very expensive . I found this Guaif. At Walmart . I take one at night and one in the morning . These require an 8 oz glass of water when you take them. I make certain I do that . And I drink about 100 ounces of water a day . It is Well Water - no treatments . The other thing I do for the phlegm is watch my diet . It is a big factor. Onions , celery, broccoli, pasta , deli meats , high salt items , fatty/ oily meats .These are only a FEW examples . And dairy products . Dairy products do not cause phlegm , but they cause it to harden . So if you are eating some of these things and doing saline nebs , You are trying to fix something that you are causing yourself . ( I say “you”) but it means lots of us. When you have any disease , it is important not to feed it the things it uses against you . I use Trelegy . Three years now . That is it . 1 puff a day . I was diagnosed at stage 4 .. first news I had it . And put immediately on 24/7 oxygen at 4 ltrs . That was 3 years ago . I am always learning how to deal with this emphysema . The diet is important . It takes time to figure these ways . No one tells you !! We can’t beat it . But we can strive to make ourselves as comfortable as possible . Smile a lot today and spread word on importance of diet !! . Bless you , Crystalena