First, see if u can get a 25 hydroxy D test done to find out what your vitamin D levels are at.
Optimum is 60-80ng/mL.
Take iodine with more iodide for the lungs internally and this should help with all the issues, but make sure u take the companions, boron, selenomethionine, vitamin C.
http://breastcancerchoices.org/iprotocol.html
NAC N-Acetyl Cystein will help break up the sulfur bonds in mucus, so that u can cough it up and out.
Ubiquinol with vitamin E can be life saving, especially with pneumonia.
Getting the gut bacteria up is the majority of our immune system.
Lastly, omega 3s can really help if u have inflammation.