I'm sorry for your troubles. From my understanding, the cancer is confined, localized, to the skin metatesteses? While it may be true that nothing else can be done besides chemo, which may be beneficial too, another doctor may say yes. As Tammy suggested, seeking another opinion for other options like Proton Therapy, and others like photodynamic therapy, which treats where light can go, just beneath the surface, can be done many times, in addition too, Brachytherapy, IORT, and surgery itself, as possible options. I have been told no in the past many times for chemo, radiation and surgery, but at later dates or with someone more experienced or specializing in these may say it is possible.

Good luck.