What are the causes of rhinitis

Rhinitis is a relatively common nasal inflammatory disease, often causing nasal congestion, difficulty breathing, increased nose, severe dizziness and other symptoms may lead to headache. Many people think that rhinitis is caused by a cold, it is not true, there are many causes of rhinitis, the following we look at the experts to introduce the cause of the reasons for it
1. virus infection
Virus infection is the primary cause, or in the virus infection based on secondary bacterial infection. Known to have more than 100 kinds of viruses can cause the disease, the most common is the rhinovirus, followed by influenza and parainfluenza virus, adenovirus, coronavirus, coxsackievirus and mucus and paraneoplastic virus. Virus transmission is mainly through the respiratory inhalation, followed by contaminated body or food into the body.
2. Genetic factors
There is a family history of allergic disease susceptible to the disease. Patient family members have more history of asthma, urticaria or drug allergy. In the past, this patient is an atopic individual, and its ability to produce IgE antibodies in vivo is higher than normal. But in recent years it was found that the incidence of twin and the general population was no significant difference.

3. nasal mucosal susceptibility
The susceptibility is due to the frequent stimulation of antigenic substances, but the degree of susceptibility is the number of mast cells, basophils, and the ability to release chemical mediators in 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 normal, but also has a strong ability to release chemical mediators.
4. Antigenic substances
The antigenic substances that stimulate the body to produce IgE antibodies are called allergens. The allergen material once again into the nasal mucosa, 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 allergens
① pollen is not all plant pollen can cause disease, only those pollen large, wide vegetation area, allergenic, and by the wind to spread the pollen is most likely to become allergens. 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 the 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 ~ 500μm. Mainly parasitic in every corner of the room, which mattresses, pillows, sofa mats and other dust in the most. 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 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 allergens.
(2) ingestion 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 and shrimp, meat, fruit, and even some vegetables can become allergens.
Since we understand the pathogenesis of rhinitis, then we should exercise in the usual exercise, improve the body's resistance to improve the living and working environment, once the cold and timely treatment to avoid the occurrence of rhinitis, reduce the pain of the nose. Hope that we cherish their own nose, let it play a better role!