At 91 that's pretty late for a knee thing!
Lidoderm patches behind the knee, numb the nerves that cause pain there.
I cut one up in half and use it on the thigh behind the knee right before the bend. It really cuts pain when placed there.
Does she have cartilage left? or is is bone on bone? If bone on bone, there is little that can be done.
At 91 however, alot depends on her heart status etc. Lidoderms may not be for her depending on whatever else she has wrong with her at that age.
If she can use aspirin, not allergic whatever, there are patches called Salonpas that work for minor pain. I put them on front of my knees if I overdo sometimes.
I use these on my feet mostly however.
http://www.allegromedical.com/wound-...h-p190840.html
There are several types, the one above is the one with active ingredients.
http://www.salonpas.us/salonpas.php
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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