Sinusitis Oral Liquid is a commonly used Chinese patent medicine. Its core functions are "dispelling wind-heat, clearing heat and promoting diuresis, and unblocking the nasal passages". This medicine is specifically designed for nasal diseases caused by wind-heat mixed with dampness and nasal congestion as diagnosed in traditional Chinese medicine. It can effectively relieve typical symptoms such as severe nasal congestion, large amounts of yellow and thick nasal discharge, frontal headache and dizziness with a feeling of fullness and oppression