Open Question: Is it normal for my tattoo to have formed a rash away from the ink site?

More than a week ago, the small, I was hard from the top of my neck, my spine base tattoo, measuring one inch wide. The normal healing tattoo – a couple days, scabbed, and in good condition of the. The problem is that a couple days ago, I looked in the mirror, pimple-like spots on the back are my points. The spots are not directly tattoos, and all the way to my shoulder blade and my hips on both sides, so it can not follow-up to the excessive use of the product. I have never told me my life back in knots, and no skin allergies. This is normal, or should I see a possible infection, doctor?