Knees
I believe that the fluid on the knee is there for a reason, a good one at that. Your body is telling you to stay off of it and\or be gentle with it. Easier said than done.
I have had mine drained, yes... it was not me who equated the left knee with the kidney's but I do know a search would probably bring the poster to light.
My knees will, still on occasion, get a little puffy... If this happens, it is at the end of a day when I know I did a little too much too fast.
I do not like the word "hate". I think it is too strong and leads us into the depths of depression, anger etc. When my knee or knees send painful messages to me I talk to them and tell them how important they are to me. I ask them what they need from me to get well and stay that way... and then I try like heck to do the right thing.
Try rubbing organic peanut oil into them... alternate hot and cold packs... I think Finallyfaith recommended magnetics to me once. Though I have not procured a device, I am sure it would work very well at speeding the healing process.
FF, if you read this could you repost the device you suggested to me? I think it was a Sota unit or something like that.
http://shop.toolsforhealing.com/Magnetic_Pulser_MPG5_p/st-mpg5.htm