Hi, this is me again. My brother finished his radiation last week, and darned if I know what type it is. He was a painting contractor for many years and hardly ever used a mask for spraying. It is so hard to get him to talk about this, and all he will say is that is is from bacterial or something. In 3 weeks they will look down with a scope and find out how things are. Thank you for responding. Hugs and Kissses to all. What a wonderful thing to be able to corespond in this way. It does wonders for my spirit, and I think of all of you many times. All I could think of doing for my brother was to buy all the flavors of Haugen Dauz ice cream and balloons. Daughter and Sister too.