I took Celebrex for a while and it stopped working for me, even with taking tylenol with it. You may need to change to a different prescription NSAID such as Mobic or Arthrotec.
Hope you get some relief soon.
I had no sucess with Celebrex but have had great success with Mobic.
I would give it about 4 weeks tops, if you get no relief then ask for a switch in medications. Be very very careful with the tylenol, it is all too simple to take too much and cause permanent liver damage from overdosage!
Anti-imflamatories are that, they reduce inflamation, if your pain is not caused by swelling but by bone spurs or bone on bone contact they will not do much for you.