There is little in traditional veterinary medicine
that will help, however, acupuncture, especially electro acupuncture and laser
acupuncture could provide some benefit. There are also several Chinese herbal formulas that would be helpful, as well as a very high protein, wet or canned diet, which is grain free.
The Chinese herbal formula's that may help include: Bu Zhong Yi Qi Tang, and Shen Ling Bai Zhu San. You can purchase these online.