Hi. My son recently was diagnosed with cold induced uticaria this summer after he started getting hives, dizziness, and stomach aches after swimming. He just turned 12 and this is new to him. He also has started reacting to the cold temperatures after he plays soccer in the evening even if he takes allegra before hand. He will still get hives and feel crummy even dizzy. We live in the northeast and it is starting to impede his activities. I do not want him outside if it is below 40 degrees for more than 10 or 15 minutes. As the allegra is not preventing this, does anyone have any other suggestions on what to do? (ps..he had a ice-cube test and DID NOT react).