It is hard to diagnose the exact cause without being able to see the rash. If the symptoms are problematic or concerning, you should consult a skin specialist.
I WENT TO THE DOCTOR HE TOLD ME IT WAS MOST LIKELY AN ALERGIC (allergic) REACTOIN FROM ZERTEC WHAT A RELIEF AND TOLD ME JUST GIVE IT TIME AND IT WILL GO AWAY ()^_^) THANKS EVERY ONE