Sinusitis is a relatively common otolaryngological disease and generally is not very severe. The main clinical symptoms include nasal congestion with thick nasal discharge, reduced sense of smell, headache, and dizziness. After onset, it is necessary to visit an otolaryngology department for a sinus CT scan to help determine the extent of the lesion. If the inflammatory response is localized and the clinical symptoms are mild, conservative medical treatment can be considered. Common treatments include oral medications and nasal sprays. During treatment, regular follow-ups are needed to observe the effects. If the inflammatory response is severe and conservative medical treatment is ineffective, surgical treatment may need to be considered.