If you do something that causes pain is going to cause more pain if you keep doing it. 'Playing through the pain' works if your pain is in muscles and they have a chance to heal. Bones and joints don't get better though, just worse.

Find out what motion causes the irritation. Constant flexion usually is the culprit, but it seems you've figured that out. Keep joints as straight but relaxed as possible and move economically. Consulting a sports medicine specialist or another professional knowledgeable about medical ergonomics is a good idea.