Patients with sinusitis are advised not to smoke, as cigarettes have a relatively strong irritation and may affect the treatment of sinusitis, as well as increase the degree of inflammatory response. Some patients may also suffer from acute upper respiratory tract infections. Therefore, patients with sinusitis should visit an ENT specialist as soon as they experience symptoms, undergo a nasal endoscopy and sinus CT scan to assess the severity of the condition. Most patients can consider conservative treatment. Common treatments include nasal spray medications, oral medications, and rinsing the nasal cavity with saline. Regular follow-ups during the treatment process are needed to observe the treatment effects.