How is rhinitis caused?

In recent years, the incidence of rhinitis showed increasing trend year by year. Although the medical level of mankind in the continuous improvement, but still failed to prevent rhinitis on human injury. Therefore, to understand the cause of rhinitis is very important, so the prevention of rhinitis has a great help. Let me take a look at the cause of rhinitis.
       (A) genetic factors

       There is a family history of allergic disease susceptible to the disease. Patient family with more asthma, urticaria or drug allergy history. In the past, this patient is an atopic individual, and its ability to produce IGE antibodies in vivo is higher than that of normal subjects. But in recent years, the authors found that there was no significant difference between the twin and the general population.
       (B) nasal susceptibility
       The susceptibility is due to the frequent stimulation of the antigenic substance, but its susceptibility is the ability of the mast cells, the number of basophils and the ability to release the chemical medium in the nasal mucosa. It has been confirmed that the number of cells in the nasal mucosa of patients with allergic rhinitis is not only higher than that of normal people, but also has a strong ability to release chemical mediators.
       (Iii) Antigenic substances
       The antigenic substances that stimulate the body to produce IGE antibodies are called allergens. The allergen material into the nasal mucosa again with the corresponding IGE and cause allergic reactions.
       Cause the disease of the allergen according to its way into the human body is divided into two categories of inhalation and food:
       1. Inhalation allergen is inhaled into the nasal cavity by breathing. Such allergens are mostly suspended in the air.
       (1) pollen is not all plant pollen can cause disease. Only pollen that has a large amount of pollen, a wide vegetation area, a large allergen and is spread by the wind is most likely to become an allergen. Due to the differences in vegetation varieties, pollen with allergenicity in different areas is also different.
       (2) fungi are widely distributed in nature, mainly in soil and corrupt organic matter. The hyphae and spores are allergenic, but with strong spores.
       (3) house dust mite arthropod door spider gang. Adult size is generally 300 ~ 500MM. Mainly parasitic in every corner of the room, which mattresses, pillows, sofa mats, etc. in the most dust. Mite excrement, eggs, scaling and its broken body, can become allergens.
       (4) animal dander animal dander is one of the strongest allergens. For susceptible individuals if the long-term contact with the animals concerned, can be sensitized. Even after a small amount of deodorization, but also to stimulate the nose symptoms.
       (5) indoor dust is caused by perennial rhinitis one of the common allergen substances. Its composition is quite complex, is a variety of substances hodgepodge, including animal, plant and chemical and other substances.
       2. Intestine allergen refers to the digestive tract into the human body caused by nasal symptoms of allergen substances. Its role in the nasal mucosa is very complex, it is still not clear, milk, eggs, fish, meat, fruit, and even some kind of vegetables, can become allergens.
       The above article describes several common causes of rhinitis. Everyone should know less about the knowledge of rhinitis, especially the knowledge of rhinitis. Because each person will have a little more or less rhinitis. Rhinitis, although not enough to fatal, but it brings the pain can not be ignored.