Sinusitis is the need for cleaning, sinusitis cleaning mainly has the following benefits: 1, sinusitis patients within the nasal tract, especially the middle and upper nasal tract and other parts, there is a large amount of purulent secretions blockage, purulent secretions by blowing the nose is not easy to come out, the clinical can be flushed out through rinsing, rinsing out after the patient’s nasal tract so that the flow of secretions within the sinuses, conducive to 2, nasal rinsing can rinse out a virus bacteria and other microorganisms in the nasal cavity and sinuses, which can help a lot in the recovery of the disease, especially for patients who cannot take oral medication. 3, for patients with sinusitis accompanied by allergic rhinitis, the application of nasal rinsing can rinse out allergens in the nasal cavity, such as dust mites, pollen, dust, animal fur, etc. to reduce the accumulation of allergens in the nasal cavity, thus reducing allergy attacks. In addition, it can also reduce the invasion of allergens into the throat and trachea and reduce the occurrence of allergic diseases in the lower respiratory tract. In conclusion, sinus irrigation is very necessary.