Another thought, you can use hyperbaric oxygen to help heal and treat tissues affected by radition necrosis. Ten years is a long time but it isn't going to get better and why not try to do more.
Here are some links but you can also do a search for "pubmed hyperbaric lung" or whatnot
Hyperbaric oxygen therapy: Can it prevent irradiation-induced necrosis?
http://www.sciencedirect.com/science...14488612001094
https://www.virginiamason.org/RadiationTissueInjury
I looked into HBO last year after finishing rads and got pushback. They seem to want to treat fibrosis even though the evidence says sooner is better. Maybe if I looked around then -- but you should so that now and your insurance should cover it.
Little do ROs say anything but the first 6 months after radiation are when the body does the most tissue healing and remodeling. There is a lot you can do in terms of lympatic massage, vibration (my body tipped me off on this one), myofacial release and craniosacral massage but they don't study it and don't tell you anything other than --- see you in six months. I think it is horrible and makes me angry.
I was able to participate in, at my financial expense, a study using proton therapy on breast cancer to treat the chest wall. I couldn't get her to treat less of my breast and damn I had a bad external reaction but my lungs and heart were spared, just a minor amount of my pleura was caught in range. It was the best I could do to reduce the amount of damage with a left-sided breast cancer and Herceptin. Too bad my brain mets screwed up her data.