"i was prescribed these patches for pain in my knee due to chondomalacia and a dislocated knee cap. they really don&#039;t stick to my skin (even after washing the area and drying well) also they&#039;re hard to put on the knee cap where my pain is, they just ball up and fall off after 30mins. i&#039;ve found cutting the patch in half and surrounding the knee works. it helps with pain but nowhere close to being a 10/10 in my book let alone a 6/10."