The Warning On Hair Dye

When you get a tattoo, the ink is injected deep into your body and stays there because it's trapped by cells called macrophages which are part of the body's immune system. So if you do have a tattoo, your body is already familiar with the ink (tattoo ink and hair dye are similar) and so sometimes when you dye your hair, the body recognizes the ink as a foreign body and attacks it. Does that make sense? This type of reaction is very rare though, so there's not much to worry about even if you do have tattoos.

Not a clue. I do know that some of them have metallic components in them and they can cause allergic reactions.

That is beyond weird. I couldn't even tell you... I will have to ask my sister, who has about 20 tattoos. Maybe she knows.

I haven't heard of that thing, hair dye allergy due to tatooes. I never had a tatoo and I never dyed my hair. Maybe you got that allergy because of the brand of hair dye that you have used. You might want to try other hair dye so you could know where your allergy came from.