The commonly used dosage forms of naphazoline hydrochloride are eye drops and nasal drops, etc. Eye drops are used for eye diseases such as keratitis, conjunctivitis, dry eyes, etc. Nasal drops are used for allergic and inflammatory nasal congestion, acute and chronic rhinitis. Naphazoline hydrochloride is a potent decongestant, which can cause vasoconstriction and reduce the symptoms of mucosal congestion and edema. Naphazoline hydrochloride is commonly used in clinical dosage forms including eye drops and nasal drops, etc. Eye drops are used for eye diseases such as keratitis, conjunctivitis, dry eyes, etc. Nasal drops are used for allergic and inflammatory nasal congestion, acute and chronic rhinitis. When using naphazoline hydrochloride eye drops, it should be noted that it should not be used by patients with glaucoma or other serious eye diseases, and when using naphazoline hydrochloride nose drops, it should be noted that it should not be used by patients with atrophic rhinitis and dry nasal cavity. In addition, patients who are allergic to naphazoline hydrochloride should not use naphazoline hydrochloride eye drops and naphazoline hydrochloride nose drops. Naphazoline Hydrochloride should be used under the guidance of a professional doctor, and patients are advised to consult their doctors in advance and use it as prescribed by the doctor to avoid adverse consequences.