by NeuropathicGuy » 02 Apr 2010, 11:29
^ Wow sorry to hear :( Allergies to natural opiates like codeine are common but allergies to synthetic opiates are rare, maybe you're one of the "lucky" ones.
Bear in mind that itchiness doesn't always mean you're allergic though. Some people just react that way to opiates. Usually a true allergy is accompanied by other more severe symptoms like trouble breathing.
Hopefully they get it figured out and get you something else to try, maybe a NSAID or something since odds are good that if you're allergic to one synthetic opiate, you'll be allergic to another too.