Allergic pharyngitis is mainly characterized by irritating dry cough, pharyngeal itching, irritating cough, and foreign body sensation in the pharynx. Commonly used oral drugs include antihistamines, leukotriene receptor antagonists, glucocorticoid nebulization and so on. 1. Antihistamines: can quickly relieve the clinical symptoms caused by histamine release, recommended oral or nasal use of second-generation or new H₁ antihistamines (such as loratadine, dicloretidine, cetirizine, levocetirizine, azelastine), the course of treatment is generally not less than 2 weeks. 2. Leukotriene receptor antagonist: cysteinyl leukotriene is an important lipid mediator in the process of allergic disease occurrence and development, especially in the delayed phase of type I hypersensitivity reaction plays a key role. It can relieve pharyngeal mucosal swelling and pain, such as montelukast and zalustat. 3. Glucocorticoids: such as budesonide nebulization, etc. The drugs used must be standardized under the guidance of a doctor, do not self-medicate.