Hydroxymetazoline Hydrochloride Spray is mainly used to treat acute and chronic rhinitis, sinusitis, allergic rhinitis, hypertrophic rhinitis and other diseases. Because, hydroxymetazoline hydrochloride spray is an alpha-adrenergic receptor agonist, which has the effect of constricting the blood vessels of the nasal mucosa and reducing congestion, thus improving the symptoms of nasal congestion. The main clinical manifestation of acute and chronic rhinitis, sinusitis, allergic rhinitis, hypertrophic rhinitis is nasal congestion and runny nose, etc. Therefore, the drug mainly treats nasal congestion and runny nose caused by nasal mucosal congestion due to various types of rhinitis. In addition, the drug is a non-prescription Class A drug, commonly used in the form of spray, pregnant women and children under 2 years of age are prohibited. It is recommended that patients consult a specialist for specific medication, and not to self-medicate, so as not to delay the treatment of the condition.