Intraoperative localized urticarial reaction during Q-switched Nd: YAG laser tattoo removal

Q-switched lasers, such as the neodymium:yttrium-aluminum-garnet (Nd:YAG) laser, are the gold standard for tattoo removal.Allergy to tattoo pigment is well-documented, but adverse allergic reactions during or shortly after laser tattoo removal are rarewith few reports in the medical literature. Here we describe an intraoperative, localized urticarial reaction that developed duringtreatment of a tattoo using a 1064-nm Nd:YAG laser. As laser tattoo removal becomes increasingly popular amongst our patients, it is important for dermatologists to be aware of urticarial allergic reactions as well as their management. We outline our recommendationsfor medical management of this condition and hope that these guidelines will facilitate patient care by dermatologistswho encounter this immune skin reaction to laser tattoo removal.