Some people are allergic to tattoo ink, or even specific colors. Allergic reactions can be red at the site to vomiting, depending on the person. I don't know that you can get "sick" from the ink itself, but you can get sick from having a tattoo under unsanitary conditions (contaminated needles and/or ink, unclean environment, tattoo artist not wearing gloves, etc.).
at 12:50 PM on Mar. 4, 2010