Cold urticaria is a physical urticaria characterized by the development of wheals after exposure to the cold. Clinical manifestations may be severe, with generalized urticaria and even shocklike reactions. So far, there is not any clinical classification of the severity of these cold urticarias. Thirty-five patients with cold urticaria were consecutively evaluated at the Allergy Center of the Rothschild Hospital in Paris, France. They were examined and questioned about their clinical manifestations according to different natural cold stimulations.
Mathelier-Fusade P, Aïssaoui M, Bakhos D, Chabane MH, Leynadier F. Clinical Predictive Factors of Severity in Cold Urticaria. Arch Dermatol. 1998;134(1):106-107. doi: