We use tiger balm which is extremely strong menthol stuff, it doesn't do anything for your reaction just makes it so you can't feel the itch. Also ice helps and witch hazel too, can reduce the swelling and help the itch. I can't take zyrtec for the same reason as you - I take claritin, the generic actually - its OTC and it helps my allergies without knocking me out. You might try that. Good luck...
-------------------- Ladies & gentlemen take my advice, pull down your pants and slide on the ice.