Urticaria Hives Heat Urticaria

Urticaria hives - heat urticaria

Is a form of physical urticaria triggered by the action of sunlight on the skin characterized by an eruption of transient edematous dermis or subcutaneous tissue within minutes of sun exposure.

Urticaria and angioedema: how to recognize a crisis of hives?

The word comes from the Latin word "urtica" which means stinging nettle. The rash generally has the appearance of buttons that look like nettle stings often pruritic and evolving (some disappear, others appear). We must recognize angioedema which may be a complication of an outbreak of hives. This is it's extension to the oral mucosa and ENT, with a risk of suffocation by the swelling of mucous membranes. Any crisis of urticaria which is complicated by swelling of the lips or eyelids and / or tingling and itching of the throat must lead to consult urgently to get a cortisone injection or epinephrine in case of worrying signs . Any crisis urticaria should lead to his doctor immediately

The solar urticaria is most often a few minutes after sun exposure, especially on areas that were protected from the sun and have been recently described. The treatment of solar urticaria is often difficult and requires particularly strict sun protection.

Chronic Hives

The rash lasts sometimes several weeks, months or years. The term chronic urticaria is used to refer to any moving hives for more than 6 weeks. An allergy is a possible cause of chronic urticaria. A viral infection, heat, cold, intense effort, the sun can cause chronic urticaria The search for the cause of chronic urticaria is difficult.

The causes are numerous and this thing is making diagnosis complicated.It can take many weeks or many months. Unfortunately, medicine does not allow to trace the origin of this type of urticaria in only 20% to 30% of cases at most. The chief goal of physicians is to relieve the patient by prescribing one or more antihistamines and give advice when the crisis worse. This treatment is usually prescribed for at least 4 to 6 weeks.

Urticaria water hives

Hives that appear after contact with water are scarce. It helps, applying a wet compress on the skin for thirty minutes.

Solar Urticaria

It occurs in the first minutes after exposure to the sun and soon after put in the shade. Take the advice of a doctor before sun exposure

Urticaria rash pictures