Oh goodness, that's terrible!
The immune system is really an incredible beast. I don't have any allergies, but since I got my tattoo almost a year ago, I occasionally have raised bumps where the ink seeps out. I've been told this is a natural response to impurities in the ink.
But when I got sick last week, after seeing my mom spend 3 weeks in bed with the same thing, I was determined to knock it out by New Year's Eve. So I loaded up on B vitamins (via 2 5-hour-energies per day), and sure enough, I was better in
three days. But the stimulus to my immune system also affected my tattoo, which is now raised and itchy all the way around
Seeing as it takes up half of my upper back, I hope it goes away soon! But more than that, I hope YOURS gets better soon!