Symptoms and causes

Symptoms and causes

What is it?

Urticaria, also known as 'hives', is a rapidly onset and intensely itchy rash. The ‘hives’ are red spots that turn into thickened, pale patches. They can vary in size from a few millimetres to several centimetres and can also merge into larger surfaces.

Urticaria can be caused by an allergy, but there are also other triggering factors for urticaria, such as:

  • a quick change in temperature
  • infections
  • pressure
  • hypersensitivity to sunlight
  • effort

Diagnosis and treatment

Diagnosis and treatment

Treatment

Urticaria is treated with antihistamines, which are medications that suppress allergic reactions. They block the action of the body's own histamine. Histamine is a substance released after the body has been in contact with an allergen, which is a substance to which a person is allergic.

Treatment centres and specialisations

Treatment centres and specialisations
Paediatrics

Latest publication date: 23/08/2022
Supervising author: Dr Degraeuwe Jelle