Why is it suffering from rhinitis

Rhinitis is a disease we are all familiar with, although this disease does not threaten our lives. But once suffering from rhinitis, will give us a lot of trouble and inconvenience. Even if everyone is familiar with the disease, but most people do not know the cause of rhinitis. Here for everyone to explain what causes.
Local causes (30%):

Acute rhinitis repeated or treatment is not complete and evolved into chronic rhinitis.
Body Etiology (30%):
Long-term chronic diseases, such as endocrine disorders, long-term constipation, kidney disease and cardiovascular disease, resulting in long-term or recurrent nasal congestion or bleeding.
Environmental factors (20%):
In the environment of cement, tobacco, coal dust, flour or chemical substances in the environment, nasal mucosa by physical and chemical factors to stimulate and damage, can cause chronic rhinitis.
Local cause
Due to long-term stimulation of chronic inflammation or abnormal, caused by poor ventilation or drainage obstruction, such as chronic sinusitis, nasal septum deviation, chronic tonsillitis or adenoid hypertrophy and so on.
Nasal medication improper or excessive use of excessive form of drug rhinitis (rhinitis medicamentosa), common after a long time with a drop of nose.
Systemic cause
Vitamin deficiency, such as vitamin A or C.
Excessive alcohol and tobacco can affect the nasopharyngeal vasomotor and obstacles.
Long-term use of reserpine antihypertensive drugs, can cause nasal vasodilation and produce symptoms of rhinitis.
Endocrine diseases or disorders: such as hypothyroidism can cause nasal edema. Late pregnancy and adolescence, nasal mucosa often physiological congestion, swelling.
envirnmental factor
Temperature and humidity changes in the environment, such as steel, frozen, baking and other workshop workers, but also more prone to the disease.
Do not know if you read the contents of the above written for the cause of rhinitis has a good understanding of it? We must be careful of our health and our daily life is closely related. And at the same time have to do preventive work, the only way we can live more beautiful and comfortable.