I got 3 tattoos in the same day over Spring Break '10 with the kids. That was Saturday. Monday, Tuesday, & Wednesday, while @ work, I used the only moisturizer I had handy--Neurogena Sensitive Skin Lotion SPF 15. By Wednesday, my left leg (which had 2 tattoos: 1 large daisy on my ankle and a really large one on my upper thigh) and my right leg (very small "cameron" added to a previous tattoo), were both extremely swollen, left worse than right due to size of tattoo treated with the moisturizer. Thursday, my sister-in-law came over to see my legs, which at this point were extremely swollen up to my thighs like they were going to pop and had what she called "fever":they were very hot to the touch. She convinced me to go to the ER. So glad I did. The SPF 15 moisturizer had infected the tattoos and had lead to infection in my blood and my legs had an extreme case of cellulitis. I was hospitalized for 3 days, treated with Dilaudid for pain, Vancamycin antibiotic (very strong), and several other meds. Oh, and tested for many diseases associated with unsterile conditions in some tattoo shops (all negative thank goodness). Everyone that knows about this fiasco asks if my $3400 tattoos were worth it (which includes hospital stay...lol). I look at it this way: it wasn't my artist's fault, it was purely my ignorance that led to the issue. I am definitely read for more. Loving tattoos!