A common name for the disease of urticaria is ‘hives’ or ‘nettle rash’. Hives cause an outbreak of rashes and reddish bumps on the surface of the skin, as a result of some reaction to allergies. Urticaria can be caused by reaction to foods, allergens or other irritants to the skin. The reaction is usually caused suddenly, and the rashes can be itchy and irritable. Urticaria is a fairly common ailment and can even be caused as a result of stress and reaction to certain medication.
Hives generally disappear over a short period of time, even without medication. But it is advisable to consult a medical professional in case the patient experiences excessive itching and burning of the skin. Antihistamines are an effective way of curing urticaria. Hives are not contagious, and do not spread from one person to another.