If you want to determine whether you have rhinitis, clinically you can mainly judge from the symptoms, including the following: First, nasal congestion, most patients with rhinitis have bilateral nasal congestion, which can be alternating or intermittent, nasal congestion is mainly due to swelling of the nasal mucosa, enlargement of the inferior turbinates, and blockage of nasal secretions. Second, runny nose, mainly bilateral, can flow clear water-like nasal discharge, but also can flow viscous yellow nasal discharge, mainly due to the inflammatory exudation of mucous membrane in patients with rhinitis. Thirdly, sneezing is common in patients with allergic rhinitis, mainly due to the allergic reaction in the nasal cavity that induces sneezing symptoms. Fourth, decreased sense of smell, mainly because patients have swollen nasal mucosa, enlarged turbinates, blockage of nasal secretions, resulting in the inability to enter the gas in the olfactory cleft area, thus patients may have decreased sense of smell or even disappear. Fifth, headache, head swelling and other related symptoms, some patients may have toothache, etc., which may also be incidental symptoms of rhinitis. If you have the above symptoms, it suggests that you may have rhinitis. Of course, it is not very accurate to judge rhinitis from the symptoms, you should go to an ENT clinic and be examined by a professional doctor to be more accurate.