My Mom has CFS & FM, along with multiple allergies and chemical sensitivites. As such, it's hard to find meds she can tolerate. She was recently prescribed B-12 patches, since she was having a hard time with the B-12 shots, and has a very serious deficiency, along with a Folic Acid deficiency. Has anyone used the B-12 patches? It's a bit concerning that they are to be applied behind the ear - so close to the brain. We would love to hear from someone who has used the B-12 patches and learn both the good and the bad effects. Thank you.