Unfortunately, bone cancer can be quite aggressive and there isn't much that can be done medically. The best you can do is offer him support with supplements. We have seen some very good success with controlling discomfort and improving quality of life with bone cancer using our supplements. You can see one example here in one of our blogs: http://blog.nhvnaturalpetproducts.com/gus-the-goldie-wont-let-bone-cancer-slow-him-down/
As the blog mentions, Gus was taking ES Clear, BK Detox, Yucca, Nature’s Immuno, Turmeric and Milk Thistle. It may seem like quite a few supplements, but they all work synergistically together very well. If it is preferred to start with less, we recommend starting by adding the Nature's Immuno and Yucca to the regimen. The Nature's Immuno works very well along with the ES Clear for cancer support and the Yucca has natural pain relieving and anti-inflammatory properties.