Thankyou So Much. I Am A Cancer Survivor And Have

Thankyou so much. I am a cancer survivor and have some pretty seious health problems from my first chemo done over 20 years ago. I have been using the mallinckrodt fentanyl patch for years without any problems. I recently moved to Oakland and can not find those patches anywhere. The watsons i currently use fall off, cause a rash and are plain old uncomfortable. I also feel they are less effective for some reason. Can i order them,or how can i get them. I have used mylan last month and they were also less effective. Can you please help me? Thankyou, ciemarie