Very few of us look forward to the approach of cold temperatures and the runny noses, stiff joints and stinging fingertips that accompany the wintry months. But did you know it’s actually possible to be allergic to cold weather?

The allergy is called cold urticaria [uhr-ta-care-ee-ah]. Young adults ages 18 to 25 years old are most often affected.

There are two forms: acquired and hereditary. In both cases, the most common symptom is the development of large red hives or welts on the skin after exposure to cold, cold water or cold objects. Hands that swell while holding cold objects or swollen lips after consuming cold food or drink are also symptoms.

More severe reactions include swelling of the tongue and throat that make it difficult to breathe. Anaphylaxis, a potentially life-threatening allergic reaction, is also possible. It can cause fainting, a racing heart, swollen limbs or torso and shock.

In the acquired form, the symptoms become obvious about two minutes after exposure and last for up to two hours. In the hereditary form, symptoms can take up to 48 hours to develop, and can last another two days. Both types are rare.

The easiest way to diagnose the allergy is to hold an ice cube against the skin for up to five minutes. A distinct red rash should develop if the patient has cold urticaria.

The best treatment is to avoid a sudden drop in temperature. Allergy sufferers also should avoid swimming or surfing without supervision, in case cool water triggers a reaction. Antihistamines can be prescribed to help patients until their bodies, over time, warm to the thrill of the chill.