Conditions and diseases
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
- hypersensitivity to sunlight
Diagnosis and 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
Latest publication date: 21/01/2021
Supervising author: Dr Degraeuwe Jelle