Allergies
"I have a rare skin rash that appears only during summer months. It is an immune system response to heat. Xyzal 10 mg reduces the rash by about 20%, but after about a month, an immunosupressive reaction occurred.  I started getting large, painful pimples in weird places like forearm, hand, and neck. Had a similar reaction to Flonase a few years ago. Immune system can&#039;t fight the pimples, so they take over. Disappointing because this is the first oral drug to have an effect on the rash. Hay fever gone too."