Maxillary sinusitis disease, which refers to maxillary sinusitis, is generally categorized into acute maxillary sinusitis, chronic maxillary sinusitis, and odontogenic maxillary sinusitis. Usually can show nasal congestion, runny nose, fever, headache, toothache, bad breath and other symptoms. 1. Nasal symptoms: chronic maxillary sinusitis is dominated by local symptoms, usually manifested as persistent nasal congestion, purulent nasal discharge and other nasal symptoms, the patient will also have a sense of smell loss, head and face heavy, maxillary sinus pressure and pain and other symptoms. 2. Systemic symptoms: in addition to the presence of nasal symptoms, acute maxillary sinusitis has chills, fever, headache, body pain and other systemic symptoms. 3. Other symptoms: In addition to nasal and systemic symptoms of odontogenic maxillary sinusitis, patients may have toothache, bad breath, purulent oral secretions and other symptoms, accompanied by nasal odor and other manifestations. Patients with the above manifestations of maxillary sinusitis should be timely consultation, under the guidance of the doctor to improve the examination, a clear diagnosis, targeted treatment.