As tanza said, you should check your pup out with your vet. Proactive. If your not into "medication" (drugs, as some do have side affects); there is always Golden Paste. You can't buy it, you have to make it yourself, and only takes about 15 minutes. If your on Facebook, there is a group called Turmeric User Group. Web site:
You do have to ask to join. Lots and lots of good information. Golden Paste is an antiinflammatory. You start out at 1/8th of a teaspoon 3 to 4 times a day, and gradually work up. People on that site are willing to help, so it doesn't hurt to ask question. The files give the info on how to make the Golden Paste.
FYI......most dogs don't like the taste. I mixed mine in with either yogurt, or cottage cheese, what have you. It truly helps.