I have had swelling in my knees for awhile now and have tried many things with limited success. What worked best was basically staying off my feet but at the end of the day my knees would still be swollen. I came across a you tube video by Wim Hof and his breathing method to make a long story short it has had a immediate effect on the inflammation in my knees it cost me nothing but doing the method two to three times a day, no pills, nothing required but his breathing method . He is also known as the ice man and has done some amazing things if this helps you as much as it's helping me that will be great give it a try. You might be amazed how your ability to hold your breath increases also.