My father tolerated 40 radiation treatments and weekly chemo without adverse affect. He the had 2 weeks off and then 2 months of weekly chemo, no more radiation. He developed acute shortness of breath which is stated as from radiation 2 months ago, but I suspect his chemo caused it. He is not responding well to steroid unless they are given IV and he is deteriorating with oxygen at 4L and severe weakness. Does anyone have experience with this? Are you aware of any treatments?