I went through it with heavy bows many times. I would advise against pain killers, you accually want to know if you are hurting yourself. I wouldn't call what you have arthitis just yet. Tendon damage is more like it. You may even have adhetions on your tendons. glucosamine complex with msm and hyaluronic acid and fish oil is what I used to get my hands back, i am a classic guitarist. I had locking joints painful lumps on my knuckles and clicking sounds when I curled my fingers. A good excersize is, do a reverse release putting resistance with your opposite fingers on the nail side of your fingers, walking the spider i call it, to balance the strength if you hands.