The agents Allergic rhinitis is a diagnosis that is closely related to a series of symptoms that affect the nose. These symptoms appear at the moment in which the individual inhales something to which it turns out to be allergic, such is the case of dust, dander or pollen. Symptoms can also occur when the affected person consumes a food that causes allergies. This produces in the person constant sneezing, itching, obstruction, abundant nasal secretions and in some cases, partial loss of smell.
Symptoms generally extend for two or more consecutive days and for more than an hour in the day. This is the most common form of non-infectious rhinitis, but despite this, it is not the same as asthma, however, it can be an indicator that the affected person has a predisposition to later develop the characteristic symptoms that are presented by bronchial hyperresponsiveness.
Rhinitis determines the production of nasal hyperreactivity to stimuli by effect of allergen inhalation. Those patients who present this type of allergy, should avoid as far as possible meadows in flowering period since it can be affected by the pollen that they generate. However, hay fever can occur throughout the year and constantly, without being related to the weather seasons.
For its part, the main element that causes rhinitis are aeroallergens, which are usually classified as indoor, outdoor and work agents. In the case of indoor agents, the most important are house dust mites, which are small mites that are found on mattresses, furniture, etc. Likewise, saliva, epithelia or urine of animals are important agents. On the other hand, those outdoors include some species of atmospheric fungi and pollens. According to experts, those that cause the greatest number of allergies are those that come from grasses, weeds, such as mugwort, ragweed and parietaria, as well as some trees, for example, the olive tree., cypress, plane tree, etc.
