•Sumifun authorized reseller, 100% authentic product guarantee
•Effectively relieve headache caused by cold, overwork, staying up late, long-term emotional tension, excessive stress, anxiety & poor mental state
•Adjuvant treatment of dizzy migraine, cervicogenic headache, cluster headache, etc
•Clean and dry the skin behind ears
•Stick a patch to both of the ears behind
•Once a day for 8-12 hours