Allergic rhinitis will have the feeling of pharyngeal blockage, may be related to chronic pharyngitis, postnasal drip syndrome, allergic pharyngitis, etc.. 1. Chronic pharyngitis: allergic rhinitis can cause more obvious symptoms of nasal congestion, resulting in increased resistance to respiratory ventilation, there may be a long-term phenomenon of open-mouth breathing, resulting in pharyngeal mucous membrane dryness, phlegm blockage and other symptoms of chronic pharyngitis. 2. Postnasal drip syndrome: allergic rhinitis can lead to swelling of the nasal mucosa in the nasal cavity, increased exudate, nasal secretion in the position change, flow to the pharynx, the mucous membrane of the pharynx caused by long-term stimulation, triggering chronic pharyngolaryngitis, pharyngeal itching, pharyngeal sensation of foreign bodies and other symptoms. 3. Allergic pharyngitis: allergic rhinitis is itself allergic, allergens may also directly stimulate the mucous membrane of the throat, resulting in localized allergic reactions in the throat, resulting in congestion and edema in the throat, leading to this symptom. It is recommended that patients seek timely medical treatment for allergic rhinitis and actively cooperate with doctors to develop appropriate treatment programs.