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Vasomotor rhinitis occurs when the blood vessels inside your nose dilate, or expand. Dilation of the vessels in the nose produces swelling and can cause congestion. Mucus may also drain from the nose.
It’s not known what causes the blood vessels in the nose to dilate. Some common triggers that may produce this reaction include:
irritants in the environment such as perfumes, odors, smog, or secondhand smoke
changes in the weather, particularly dry weather
viral infections such as those associated with a cold or flu
hot or spicy foods or drinks
medications such as aspirin (Bayer), ibuprofen (Advil, Motrin), or beta-blockers (Propranolol, Metoprolol, Atenolol), certain sedatives, antidepressants, oral contraceptives, drugs used to treat erectile dysfunction
overuse of nasal decongestant sprays
hypothyroidism
stress
Hope this help a little.
