+2,3,4,5 on the Salmon Oil recommendation
oh, one more thing - my dog seems to be allergic to grass or pollen, his paws get all itchy... Malaseb shampoo has really helped. Keep lather for 10-15 mins for maximum effectiveness. Keep out of eyes. I discovered this when one of my other dogs got TPLO (torn ACL) surgery, and the orthopedic vet recommended bathing him with it. Previously, my dogs were allergic to flea bites (they can still get bitten despite being on Frontline), and the general vet recommended all these crazy medicines. Malaseb probably would have done the trick, but then they would have lost out on several hundred dollars of revenue on diagnostic tests...