My mom just started the fentanyl 25mg patches from severe leg pain. It worked great for pain but her tongue got bumps on it and it was a feeling like when you burn your tongue on a very hot drink. She also experienced a hard time breathing. The pain was gone which was a plus but the tongue thing was bothersome also they went away after she took the patches off the dr said it wasn't from the patches but almost 36 hrs after removing the patch her tongue was back to normal anyone have this problem before??