Are any watchmakers taking you up on your testing methodology, Amy? I hope so, since I've tried to wear steel wristbands that supposedly were hypoallergenic and still developed a rash. Thanks for verifying that "hypoallergenic" is not scientifically defined, since those of use who develop awful rashes are often dismissed by others who say (1) a given product is labeled hypoallergenic, so the problem must be psychosomatic, or (2) they themselves are allergic to nickel but don't react severely, therefore we're either faking or being overly dramatic.
If only that were true.
I once had to go to the hospital with red welts all over my body just because I forgot to take a prescription antihistamine. If I don't take that same pill every night, I break into hives. Leather and metal that touch my skin do the same thing regardless. So far, titanium seems to be the only metal I can wear.
I'm glad you're not taking this subject lightly. It's clear that the severity of food allergies is increasing as time goes on; so, perhaps has that of skin allergies like mine.