Osteoarthritis
"This was without a doubt one of the most painful experiences I have encountered in my 65 years.  I had it last January.  The shot itself was not bad, but immediately after the shot, the pain around the knee was excruciating.   I pretty much lived with pain twice as bad as before I had the shot for the next eight or ten weeks.  Staying off of it, icing it and pain killers were the only help.    Eventually the pain slowed down, but I would recommend that people look carefully and study the possible side effects before doing it.  I  had a partial knee replacement in July (six months ago) and the results are spectacular...  I am walking, doing water aerobics and extremely active without any pain."