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My Daughter Has A Possible Allergic Reaction To Bactrim Keflex.
My daughter has a possible Allergic reaction to Bactrim Keflex. The allergy doctors don't test for sulfa drugs and is testing her to see if she has an allergy to Penicillin. But from what I read, an allergy to one doesn't mean an allergy to the other so is being tested for a penicillin allergy worthless if trying to see if the allergic relations she had was to the Keflex?