I weaned off of Lexapro about 4 months ago, and it wasn't much different than other weanings I've gone through.  I went from 20mg to 10 to 5 over the course of a couple of weeks while transitioning to Wellbutrin.  My withdrawl symptoms always seem to be a tingling in my lips, teeth, gums, and tongue.  The general tingling disappeared after a few weeks, but oddly, certain sounds will trigger it . . . even now.  But again, this is common to all of my withdrawls.  I had previously dropped Effexor cold turkey a couple of years ago and that was a nighmare; I would never recommend going cold turkey to anyone.  For me, dropping Lexapro was no big deal. 
I suppose I should mention that I'd only been taking it for about 6 months . . . maybe less, so depending on how long you've been taking it, your mileage may vary.  Good luck!