My acupuncturist gave me this as a gift for unrelenting migraines and headaches after brain injury. I completely forgot I had them. Woke up this morning with stiff neck, shoulders and sensitivity to light and sound. Found these while stumbling through my restroom. Used the map to poke around till I found my sensitive spots and stuck a bead on them...bilaterally (both ears). They were SO sore I nearly took them right off,, but gradually the soreness eased. About 20 minutes later, my neck wasn't as tense, my pressure headache was reduced, and I was no longer sensitive to light. I'm sold. Searched Amazon till I found my own pack. Don't want to let these run out. Who'da thunk I could figure the out. So grateful it worked! Don't forget to poke around till you find the sore spots, then sink a bead into them.