Often the same thing, sinusitis generally refers to sinusitis, is caused by bacteria, viruses caused by purulent sinusitis, there are acute sinusitis and chronic sinusitis. 1. Acute sinusitis: the most common, can occur in all ages. It is mainly caused by purulent bacteria. Symptoms such as fever, nasal congestion, headache, purulent nasal discharge and malaise may occur. Treatment is mainly to eliminate the cause, anti-infection and symptomatic treatment. 2. Chronic sinusitis: mostly caused by the delayed development of acute sinusitis, mainly including nasal congestion, purulent discharge, dizziness, generalized fatigue, decreased sense of smell, etc. It has a long history and is usually treated with standardized medication first. If ineffective, sinus surgery under nasal endoscopy is usually used. Regular postoperative review and nasal rinsing promote the patient’s recovery. It is recommended that patients should pay attention to rest, avoid fatigue, and improve the body’s immunity. If the condition is found, go to the hospital in time for diagnosis and treatment under the guidance of professional doctors.