Brian, try to get yourself a bottle of Oregano Oil I can PROMISE you, it will knock out that infection in the fastest way possible.

If you're not familiar with Oregano Oil, google "The Benefits of Oregano Oil" or start here:
http://www.thewolfeclinic.com/oregano.html

I'm not sure about the shops where you're located, but here in the states, it is commonly available at the "Vitamin Shoppe" - the stuff is hella expensive though (typically ~$50 for the extra strength ("P73") form of the oil - but it's worth every penny IMO!)

I've been using it for years during the winter time to avoid catching Flus and colds and it hasn't let me down yet.

It saddens me to hear you have a lung infection and I wouldn't have bothered to write all this if I didn't think it would really help you!

-Will