The nose is the first point of contact between the human body and the outside air, and is the first line of defense against the invasion of dust, viruses and all kinds of dirt into the body. With poor air quality, more dirt, bacteria and viruses will be deposited on the nasal mucosa and nasal cilia, making it easier to trigger inflammatory and allergic diseases such as rhinitis and sinusitis. A 60-year-old aunt had a tumor larger than a quail’s egg in her right nasal cavity. Considering that it had the possibility of malignant transformation, surgery was hastily arranged to remove it. The pathological section revealed that it was a tumor caused by HPV (human papillomavirus) infection, a common virus that most likes to attack human skin mucous membrane tissue and can cause diseases such as condyloma acuminata and cervical cancer. Similar to this, it is now common for the virus to invade the nasal cavity and cause nasal disease. We doctors sometimes get together and discuss that the air quality nowadays is not comparable to that of the past years and people’s noses seem to be getting weaker and weaker. I have a distinct feeling that the proportion of patients with nasal disease among those who come to the ENT department is increasing year by year, and is now about 60%, far more than those with ear and throat diseases. ”Every day in the clinic, at least half of the people come to see the nose, common problems are acute and chronic rhinitis, allergic rhinitis, sinusitis, etc.. I have noticed that there are especially many children with sinusitis, more and more every year.” As early as 2009, the Ministry of Health has issued a warning: disease statistics report data show that the annual increase in rhinitis patients significantly, related to the decline in air quality and not effectively controlled and improved, to remind everyone to pay attention to nasal health. Can protect the nose, what should be done? The weather turns cool to do a good job of keeping warm, the nasal cavity is particularly vulnerable to cold stimulation, followed by hazy days do not go out, people with morning exercise habits to pay attention to the weather conditions; again, the air quality of the general environment personal nothing good, but the home, office and other indoor environment can still do something to improve the conditions may wish to use the quality of reliable air purifiers. The nose always appear sneezing, stuffing jail and other cases, to consider may be an inflammatory attack, it is best to promptly seek medical attention. “I recommend that you can get into the habit of washing your nose, just like brushing your teeth and washing your face every day. Nasal washing is not only an adjunctive treatment for patients with rhinitis and sinusitis, but also a good way to take care of the nasal cavity.” The World Health Organization’s recommendation index for nasal washing has risen to the highest level, A, in 2012. Washing the nasal cavity with special instruments and preparations (most commonly saline) can help keep the nasal cavity clean, get rid of accumulated bacteria, viruses and allergens, reduce the state of nasal congestion and edema, and restore and promote the normal function of the nasal cavity. The operation of nasal washing is not complicated and does not cost much. However, the specific tools and preparations used vary from person to person, and it is best to let your doctor give specific instructions.