What causes rhinitis?

Air pollution is quite serious nowadays, so rhinitis is a common symptom. Especially in winter, you must pay attention to keeping warm, because rhinitis caused by typhoid fever is likely to leave a root of the disease, so you must pay attention to the impact of cold climate in winter. Viral infection is the main cause of rhinitis, so we must ensure the cleanliness and health of our respiratory tract on a daily basis. Moistened air can relieve the symptoms.

Some people are more sensitive to the surrounding environment, so they must be careful to avoid being in irritating gases for a long time to ensure their own health. Inhalation of polluted gases can also affect the occurrence of rhinitis. Sensitive people may react to irritating gases.

1. Viral infection

Viral infection is the primary cause, or bacterial infection is secondary to viral infection. More than 100 viruses are known to cause this disease, the most common of which is rhinovirus, followed by influenza and parainfluenza viruses, adenovirus, coronavirus, coxsackievirus, and myxovirus and paramyxovirus. The virus is mainly transmitted through inhalation through the respiratory tract, and secondly through entering the body through contaminated objects or food.

2. Genetic factors

People with a family history of allergies are more likely to develop this disease. Most family members of the patients have a history of asthma, urticaria or drug allergy. In the past, such patients were called atopic individuals, whose ability to produce IgE antibodies was higher than that of normal people. However, in recent years, some people have found that there is no significant difference in the incidence rate between twins and the general population.

3. Susceptibility of nasal mucosa

Susceptibility arises from frequent stimulation by antigenic substances, but the degree of susceptibility depends on the number of mast cells and alkaliphils in the nasal mucosal tissue and the ability to release chemical mediators. It has been confirmed that the number of the above-mentioned cells in the nasal mucosa of patients with allergic rhinitis is not only higher than that of normal people, but also has a stronger ability to release chemical mediators.

4. Antigenic substances

Antigen substances that stimulate the body to produce IgE antibodies are called allergens. When the allergen enters the nasal mucosa again, it combines with the corresponding IgE and causes an allergic reaction. The allergens that cause this disease are divided into two categories according to the way they enter the human body: inhalation and food.

There are many causes of rhinitis, so we must pay attention to our respiratory health in daily life. If you are in an irritating environment for a long time, you must take appropriate protective measures. For the health of the nasal mucosa, you must not use hard objects to stimulate it, so as to avoid affecting some of our body's protective barriers to prevent diseases.