Hi, My name is Mary and I am 59 years old, I was diagnosed with Chronic lymphocytic Leukemia nine years ago. since then I have had chemo twice; the first time was two years ago for four weeks and the second was last year for six months. during that time I have been fighting one bought of pneumonia after another. This morning, I saw an urgent care doctor for pain in my left lung and was told I had pleurisy. I work as a cook in a daycare but take all precautions necessary to protect myself from germs even taking multivitamins daily; Nothing is helping! does anyone know of any thing I can take to help my immune system that actually works?