Urticaria (Urticaria, Nettle Rash, Hives)

Urticaria is a skin disease in which irregularly shaped blisters filled with clear fluid appear on the body. The skin itches a lot because the rash provokes a sharp release of histamine. As a result, soft tissues swell. People with sensitive skin even experience severe pain at the site of the lesion. The diagnosis is made based on symptoms, but additional examination is required to clarify. An allergy (urticaria) can develop to any substance that has been ingested or come into contact with the skin.

Hives involve a rapid reaction of the immune system. If an allergen enters the body, histamine begins to be intensively produced, causing not a decrease, but an inflammation reaction. An incorrect response from the body stimulates both histamine metabolism and vasospasm. Symptoms may appear minutes or hours after exposure to the allergen. And it also happens that this takes a lot of time: several days.

Hives are an itchy, itchy skin condition that occurs due to the release of histamine by mast cells. Hives may be accompanied by swelling of an area of ​​the body and can therefore lead to increased blood pressure and severe difficulty breathing. The most common form of urticaria is acute urticaria, which develops within days of exposure to allergens such as fruit or fish. In chronic urticaria, the allergen causing the reaction may be absent, but the rash may persist for many months. The development of angioanaphrisis is characterized by the development of swelling of the lips, tongue or other mucous membranes; emergency medical care is required to relieve this condition. In order to prevent the development of hives, it is recommended to take an antihistamine.