Spring, with all the flowers blooming, is a high season for allergic rhinitis. Allergic rhinitis, also known as allergic rhinitis (allergic rhinitis for short), is an inflammation of the nasal mucosa caused by exposure to allergens (allergens) in susceptible individuals. It often manifests as nasal itching, sneezing, runny nose, and nasal congestion. The onset of the disease is related to specific immune disorders in the body, often IgE-mediated type 1 allergic reactions. Allergic rhinitis is divided into two categories: perennial and seasonal. Perennial rhinitis is mostly caused by various mites, dust, fungi, cockroaches, animal dander, feathers, insects, etc. and has a perennial onset; seasonal rhinitis is mostly caused by pollen spores, also known as hay fever or chytridiomycosis. Allergic rhinitis can be examined by anterior rhinoscopy and nasal endoscopy. The nasal mucosa can be normal during the asymptomatic period or after drug control; the nasal mucosa is mostly pale, congested, or light blue, with mucosal edema, and the inferior turbinate is heavy. Allergens should be investigated if economic conditions allow. These include: skin prick, nasal mucosal excitation test, specific IgE test, and recently, biomagnetic resonance examination. Smear examination of nasal secretions aids diagnosis. Treatment of allergic rhinitis includes: (1) Avoid contact with allergens: hay fever should be avoided, reduce exposure to pollen, go out, wear masks, etc. if necessary. (2) Medication: Preferred nasal spray: such as budesonide, fluticasone, mometasone, etc. Severe nasal congestion can be used 0.5~1% ephedrine and hydroxymetazoline, but the time and scope of use should be controlled, the time generally does not exceed one week, hypertension should reduce the application. If accompanied by laryngitis or/and asthma can always have fluticasone, terbutaline and other sprays (spray throat when laryngitis or/and asthma attack). Spray can not control the symptoms can be added with oral drugs are: antihistamines, if severe, hormones can be applied, but ulcer disease should be avoided, not long-term application, and nasal turbinate and intramuscular injections are not recommended. Mast cell stabilizers mainly play a preventive role. The efficacy of anticholinergics is limited. (3) Immunotherapy: non-specific immunity such as BCG vaccine and Mycobacterium polysaccharide can regulate immunity; specific immunotherapy includes improving tolerance to allergens, and nasal and sublingual administration is currently a new research hot spot. (4) Strengthen physical exercise to enhance physical fitness to improve the immunity of the body is the fundamental measure. (5) Surgery: If accompanied by abnormal nasal structure should be corrected: correction of nasal septum deviation, correction of pneumatized turbinates, submucosal resection of hypertrophic turbinates or plasma ablation, if there are nasal polyps sinusitis should be operated accordingly, the purpose of which is to improve ventilation and drainage, correct anatomical abnormalities and reduce the sensitivity of nasal mucosa to nerves. These surgeries are beneficial. Intranasal procedures such as selective neurectomy of the pterygoid canal nerve and the anterior sieve nerve are not efficacious and are no longer used. In addition, the development and application of traditional Chinese medicine has a broad prospect at present. For example, Sinopressin granules have long been used in clinical practice.