The acute phase of sinusitis largely depends on the extent of the inflammation. If the inflammation is mild and the symptoms are atypical or slight, saline nasal irrigation can be considered. If the inflammatory reaction is severe and accompanied by clear symptoms like nasal congestion, purulent nasal discharge, headaches, and dizziness, then medical treatment should be considered. Generally, the treatment consists primarily of oral antibiotics, along with traditional Chinese medicines and mucolytics, supplemented with nasal sprays. Regular follow-ups are advised, and the treatment period usually ranges from one to two weeks. If standardized medication does not work, or in the case of fungal sinusitis, surgery may be necessary.