What medication can you take to help a migraine if im allergic to codine?

NSAIDs. Such as Aspirin or ibuprofen, caffeine and targeted migraine therapies which are prescribed by a physician.
Migraine. Really should see your primary care doctor or a neurologist if you have migraine headaches. Sometimes there are much better controller medications or treatments to help for the migraine. And it might not even be a migraine. It also depends on your allergy to codeine. If you just get itchy, take a non-sedating antihistamine to decrease the itch but the Codeine can help the headache.