Eight out of ten people with pollen allergies are sensitive to grass pollen, as evidenced by an informative talk about spring allergies developed in Pamplona, ​​in which doctors Ana Isabel Tabar, head of the Servicio de Allergology of the Hospital Complex of Navarra, which has reported on the clinical aspects of allergies, and Javier Aldaz, head of Food and Environmental Health of the Institute of Public Health, which has referred to the epidemiological aspects of this spring condition caused by pollens .

According to these specialists, the allergic process is triggered when the immune system of a person with allergic disease identifies as harmful substances called allergens, which are harmless to the rest of the population. When coming into contact with the allergen to which the patient is sensitive, a series of processes occur, in which the main responsible is an antibody called Immunoglobulin E or IgE, which defends the organism trying to eliminate allergens from tissues and the blood.

Scarce treatment follow-up

In addition to environmental prevention measures, drugs that reduce symptoms can be used: antihistamines, which control itching and sneezing, anti-inflammatories or inhaled topical corticosteroids, which reduce nasal obstruction and inflammation, eye drops, which relieve itching and ocular redness , bronchodilators, which relieve cough and chest sounds, and anti-inflammatories such as corticosteroids and antileukotrienes, which reduce bronchial symptoms.

Simultaneously with the pharmacological treatment or relief of symptoms, there is immunotherapy or treatment with vaccines. In many cases of respiratory allergy, when the allergen is identified, the immunotherapy or vaccine has demonstrated its effectiveness, and consists in the administration, progressively, either subcutaneously or sublingually, of said allergen, until inducing a tolerance in the organism. .

However, according to experts, despite the widely demonstrated efficacy of antiallergic vaccination, many patients leave treatment. In most cases, the patient's lack of adherence to immunotherapy is due to the lack of knowledge about his disease and treatment; The lack of information generates distrust and makes the patient not include the treatment in their routine and, consequently, does not follow the recommended guidelines.

Many of them stay halfway or at the beginning of treatment, so one year after starting treatment only six out of ten patients continue, while in the long term half of the remaining patients have left.

Allergy of all springs

As every year, the agent that will cause the most symptoms this spring is grass pollen. It is the most allergenic and most widely distributed in our country. Eight out of ten pollen allergic patients (pollen) are sensitive to grass pollen. The intensity in the pollination of the grasses of each season maintains a close relation with the humidity and pre-seasonal rainfall, that is to say, that one that registers between the months of October to March, according to the specialists indicate.

However, the real impact of this "spring" agent on the symptomatology of patients will ultimately depend on how the month of May is presented; it will be the climatology of said weeks, period in which the pollination takes place, the one that is determining. Dry weather and moderate temperatures is the worst scenario for allergy sufferers.

On the other hand, rain and wet weather during pollination decrease pollen concentration levels. In 2009 the high temperatures caused by Saharan winds, quickly exhausted the grasses. On the contrary, last year, the abundant rains of the months of May and June, favored a softer spring than that predicted in the month of March.


Runny nose? Itchy eyes? Allergies, arise! (November 2019).