Nickel allergy and the iphone 6

I have had an iphone 5 for 2 years and never had any problems with it. Most of the time I had it savely tucked in a case, but especially the first weeks I had used it a lot bare handed and without any protection. While I have been diagnosed with a nickel allergy for years and develop easily rash when exposed to nickel I never had a problem with my black iphone 5.

About a week ago i received my new iphone 6. Space grey, because there isnt a black one. The first evening I used the device naked. Aware of my clumsyness and the fact that I dont really like the feel of the new material I bought a flip case the next morning. When I looked into the mirror I saw that I was developing eczemes in the face (eyes, forehead, ears and chin), on my lower arms and around the shoulders/lower back. All places I touch regulary and often. At first I thought it might not be a big deal, maybe I ate something bad and itll go away. However, the rash is getting worse and worse and while I was trying too figure out what it could cause (using my iphone to search the web) when it suddenly occured to me. I had heard that Ipads can cause such reactions, but since I never had problems with the old phones so I didnt consider it. After all, I am using a case which covers the back of the iphone and the sides.

Apparently my love for apples latest product is pretty much one sided. I am certain that I cant be the only one here with a nickel allergy. Could it be that the space grey colour was a bad choice and the silver/golden one would have been better since they have less nickel in their paint? Where can I contact apple to make them aware of the problem? Would it be possible to exchange my space grey iphone for another colour if those are less

I am a huge fan of the apple watch too, up to now I hoped that nickel wouldnt be an issue there, apparently apple still doesnt consider one of the most common allergies on the world and doesnt produce allergy friendly products. :/