Nasal conchae contain very rich vascular structures and these structures regulate breathing through the nose by congesting and decongesting throughout the day. Long-term inability of the nasal veins to dilate and constrict again due to various factors; results in nasal congestion and rhinitis, this condition is called vasomotor rhinitis. These reasons include stress, some chemicals (volatile gases, paint, perfume, air pollution, cigarettes), insufficiency in thyroid functions, pregnancy, some blood pressure medications, birth control pills and long-term use of decongestant nasal sprays. In the early stages of the disorder, nasal congestion is temporary and reversible. If the factor causing the obstruction is prevented, disorder will improve. However, if this situation lasts for a long time, the blood vessels lose their elasticity and the event becomes irreversible. Depending on the cause, drug or surgical treatment may be preferred.