I'd look up some Drs that do hydrogen peroxide IV, this has been shown to alleviate the condition to nonexistence for vast majority of people, it just erases all the tar on the lung in lesss than a week, but uh, of course to do this for yourself woudl cost less than $5, so you can see why normal Drs dont use it, oh well, also there's a book written on the entire subject on Hydrogen Peroxide cures, and while you're researching this, you can go to any health store and by some XLEAR, and use this nasal spray, 2 squirts in each nostril 4 times a day for one week and see if you don't cough up an elephant's worth of black tar from your lungs!!! Take care
Robert von