Okay, here is my story,I am 28 and I have just been diagnosed with chronic hives and swelling, I am allergic to myself.....FUN! After 8 months of constant hives, lip swelling, eye swelling and finger swelling, i went to an allergist and got prescribed Xyzal. It worked great for the first 2 weeks and i was over joyed to have my life back! But the past few days, some hives have started to come back. I have been taking benadryl along with the xyzal as needed. I was wondering if I could take 2 xyzal a day instead o 1. The only other medication that I am on is ortho cyclin birth control. Would I be okay if I took a 5 mg of xyzal early in the morning and then another in the late afternoon? Thanks in advance!