pain
"My 88-year-old mother uses lidocaine 5% patches for her sciatica pain.  The patches by Mylan are useless.  As others have stated, they are plastic and do not stay in place.  They bunch up and fall off with one to two hours of applying.  She used to get another brand which was flexible and stayed in place.  Insurance covers most of the cost of these patches, but I would not recommend them even if Mylan paid you to use them."