I have had hives now for 5 days. I woke up the first morning with them on my left inner thigh only. They got better through the day so I thought it must have just been a heat rash but the next morning I woke up and they had gotten worse again and appeared on my inner left wrist. Again they seemed to get better thru out the day but appear again in the morning when I wake up in only thoose two places. They don't spead anywhere else, I take generic otc claritin every am for hayfever and rarely use any other medication other than otc motrin and meatonin at night when I can't sleep all which I've been using for years with no problems. My only known allergy is cough suppressant inwhich I spike high fevers and get hives on both inner wrist/arms area. The hives look like little welts and are red in the am and go down thru out the day by late afternoon you wouldn't know they are there unless you felt them. They are not painful just annoyingly itchy, especially in the am.