Spontaneous hives
In spontaneous hives typical symptoms such as itching, hives and swelling of the skin occur suddenly and without apparent first-timer. Depending on the duration of the rash distinction between acute and chronic urticaria: While acute urticaria usually after two weeks - but often just a few hours - again subsides, it is called chronic urticaria, if the symptoms last longer than six weeks . stop Often, chronic hives can find no cause for complaints.
Physical urticaria
A physical urticaria is triggered by external stimuli such as pressure, cold, light, heat or friction. In total there are over 20 different subtypes. The following is the best known:
Pressure urticaria: In this form of hives, it comes through pressure on certain parts of the body to deep swelling. The swellings are particularly common on the back and on the soles and palms.
Ulna Fracture
Cold urticaria: cold urticaria can be cold air, cold liquid or cold objects are triggered. As with other forms of urticaria also causes swelling and wheals on the skin and mucous membranes. The symptoms are either a few minutes after the cold stimulus on or only when the body heats up again. How much different is the cold stimulus should be to elicit the typical symptoms of hives, is from person to person.
Patients who suffer from cold urticaria should always carry an emergency passport for himself by the disease is noted. This is the case with infusions important because these stakeholders may only get heated administered.







