I have never personally used them, but I came across a question on here one or two days ago about where a person said she and her husband used them and ended up itching terribly and they had no relief from the itching for a couple of days.
If you decide to use them, I would suggest you try a bit on a spot (inner elbow, behind the knee?) where friction and heat are created, but you can easily wash it off. Then you might be able to tell if you would have an adverse reaction to it or not.
at 6:25 AM on Feb. 12, 2009