Magic generally doesn't work like that. For one, there is no such thing as an "easy spell". Second magic isn't intended to directly alter the physical realm, like throwing fire or closing wounds, instead magic is more subtle. You could cast a spell for "better healing" but this requires that you recieve proper medical treatment first. Such spells don't just make you heal like Wolverine, but instead make the experience of healing "better".
Avoid jumping to magic for an "easy fix". You won't find it, and could make things worse. I recommend not dealing with such materials, and maybe see a doctor about it.
This sounds like you have a metal allergy. I would suggest having your doctor help you with an allergy test to see specifically what metals you get a reaction from. The best medicine for this one is mitigating exposure.
Cor certain kinds of allergies they can be made milder or overcome through a controlled exposure therapy... basically forcing your system to learn to adapt and stop reacting... but this is only viable for specific things. Which means that your doctor is the best place to go.
Sometimes they make leggings with plastic like materials so they will stretch to fit a wider range of people. I imagine this might be what you're allergic too, unless you are allergic to a certain clothing dye or maybe a fabric softner.