Hello,
These symptoms can be due to
cold urticaria. Diagnosis can be made by an
ice-cube test. Place an
ice cube on your forearm for 4 minutes and observe the area for 10 minutes afterwards. If you have cold urticaria, the area will become itchy and then swell approximately 2 minutes after removing the ice cube.
Treatment is avoiding exposure to cold stimuli, including swimming or bathing in cold water. You can take antihistaminics like zyrtec or tegamet.