Catarrhal conjunctivitis can be treated with glucocorticoid drugs such as dexamethasone and prednisolone, as well as some immunosuppressants such as tacrolimus. Catarrhal conjunctivitis is a kind of allergic conjunctivitis caused by the patient’s exposure to allergens, and the main symptoms are papillary hyperplasia of the corneoconjunctival rim and so on. 1. Glucocorticosteroids: Patients can use glucocorticosteroids such as dexamethasone and prednisolone to alleviate the symptoms of allergic reactions after staying away from allergens. 2. Immunosuppressants: Patients with severe symptoms of cicatricial conjunctivitis and ineffective conventional treatment can be treated with immunosuppressants such as tacrolimus. When the patient appeared conjunctival papillary hyperplasia accompanied by eye itching and other symptoms, it is recommended to seek medical treatment in a timely manner, under the guidance of the doctor to use the relevant drugs for treatment, to avoid self-medication to lead to adverse consequences.