Patients

Allergies are a frequent health problem, which according to the World Health Organisation (WHO) occupy fourth place in terms of worldwide prevalence. In recent decades, allergies have been on the rise, reaching significant levels in Western countries. It is estimated that 20% of the world's population suffers from some type of allergy.

According to the WHO, allergies represent "an important public health problem in terms of quality of life, days away from work or the classroom, cost of medicines and hospitalisations, among others".

What is allergy?

Become familiar with the body's allergic reactions when in contact with certain outside substances.

Allergy symptoms

The symptoms associated with allergy (rhinitis, conjunctivitis, asthma, skin reactions, etc.), depend on the type of allergen and route of entrance.

Prevention advice

Allergy prevention and recommendations for the main allergens (pollen, mites, moulds, pets, foods, etc.).

Causes of allergy

The substances responsible for allergic reactions are called allergens. Become familiar with the most common allergens.

Diagnosis

Allergy specialists use various methods to diagnose allergies.

Treatment

Once the allergy has been diagnosed, three main types of treatment are available (environmental control measures, medicines and immunotherapy).