Cold Urticaria (aka, Allergy to Cold Temperatures)
Fox 10 News did a story on Cold Urticaria which basically is an allergy to cold temperatures. With cold temperature exposure whether it be cold air, ice cube, or even ice cream, it can cause an allergic reaction resulting in lip swelling, drop in blood pressure, rash, significant itchiness, etc. There has even been cases where a person will go into anaphylactic shock if they jump into a cold swimming pool.
Oddly enough, the symptoms typically occur AFTER warming up after a cold exposure due histamine release.
Beyond avoiding cold things, there's no "cure" for this condition. Symptoms can be controlled with antihistamines.
Watch the story below! Or read the story here. Here's another story from a different source.