I have had this tattoo for five months now, and it just started acting up with really itchy bumps lately. Not the bumps that look like little pimples, but little-swollen bumps that itch and seem to kind of implode and start peeling (I use the term implode because they look like they popped, the way they dry and hollow lie an emptied pimple, but there is never any pus). I got the tattoo done at a reputable shop, and I watched the artist use new fresh needles, so I don't understand what this is or where it came from. Should I go to a dermatologist? (itchy, but not painful)