Rex not improving

Resting after 2nd acupuncture session

This is so frustrating. We can't seem to get Rex's leg to improve. He has now been on Rimadyl for one week and completed two acupuncture sessions. It pains me to see him limping so severely and not being able to walk for more than a few minutes. In all other areas he is perfect. Very alert, energetic and have so much willpower to keep going. I'm torn between keep trying and to put him down. I don't see any pain and the vet and the acupuncturist agrees. This is the only reason I keep going. The moment pain enters the picture I know what to do. I will try two more sessions and if that does not show any improvements I will have to make a decision.