chronic pain
"I saw in the comments that someone had an allergic reaction. I thought interesting.  After 10 weeks of wearing the patch I develop some itching around the edges.  The next week I had intense itching as if bit by mosquitoes.  I removed the patch and tried one more patch.  The reaction started after 2 days, mild itching to a very discrete raised red patch the exact size of the patch.  I don't know if it's the patch or the medication but will have to discontinue use.  Too bad since it really worked well at alleviating my pain at night"