Yes, they work very well. I broke my leg last summer and had trouble with swelling, the doc. put me in compression stockings but told me what strength to use. Went to a store to learn how to put them on and be fitted for the right size. I now order them on line a lot cheaper, they do need to be replaced about every 3 months or so. I am a cook so spend a lot of time on my feet and they do make all the difference.