I’ve been taking Zyrtec for allergies pretty much continuously for a year or so. I haven’t been sneezing as much lately, so I thought I’d take a break from it until spring. I stopped taking it for a couple of days the other week and got all itchy. I didn’t think much of it at the time, but I started taking it again due to the itchiness. I stopped taking it again the other day. Yesterday, I got all itchy. Noticing a trend, I did a Google search and, much to my surprise, this is a withdrawal symptom from going off the medication. Terrific.