Due to the yellow dust originating from China, a fine dust warning was issued as of 3 a.m. on the 29th. Due to the yellow dust rain, the concentration of fine dust across the country has risen to a "very bad" level by tomorrow, and patients suffering from respiratory and cardiovascular diseases, pregnant women and the elderly should refrain from going out as much as possible.

Due to severe daily temperature differences, patients with cold complaining of phlegm and nasal discharge have been crowded in the clinic every day. At H Plus Yangji Hospital in Gwanak District in Seoul on Monday, the number of patients with colds in March increased by more than 40 percent compared to February, as more patients with colds were waiting in front of the clinic of the department of respiratory medicine and pediatric and adolescent departments. In addition, the number of patients with colds is expected to increase further due to extreme yellow dust and fine dust.

Cho Eun-young, a respiratory medicine specialist at H Plus Yangji Hospital, said, "In spring, when the day-to-day crossing is severe and is heavily affected by fine dust, many people are less immune and can be infected with various viruses, so the risk of respiratory diseases such as coughing, sputum, and nasal cold can increase."

Coughing/snoring in spring should be especially careful these days when thick yellow dust and fine dust increase. Fine dust from uninvited guests, which is invisible in spring, can adversely affect our health in various areas such as bronchitis, asthma, ophthalmic diseases, chronic obstructive pulmonary disease and cardio-cerebrovascular disease. Among them, the respiratory system, which is the biggest problem, can cause or worsen chronic obstructive pulmonary disease and asthma, so special attention from the patient is required.

It should be noted that there are research reports that fine dust, which is very small and invisible, is designated as a first-class carcinogen, shortening human life expectancy by 1.8 years. This is because it can penetrate deep into the lungs through the respiratory tract or permeate into blood vessels and be absorbed into the body, causing various diseases.

Chronic obstructive pulmonary disease is the most representative. Symptoms start with coughing and phlegm, but in severe cases, difficulty breathing occurs. Smoking is the main cause of the outbreak, but fine dust is also known to have a big impact.

Therefore, when fine dust enters our body due to small particles, it is difficult to discharge it from the body, which can lead to severe sneezing and coughing. When it enters the lungs and bronchial tubes, the harmful factors cause inflammation, which often causes respiratory diseases or worsens. Therefore, on days when fine dust is intense, chronically ill patients, infants and elderly patients should wear their masks again for the time being and thoroughly perform personal hygiene.

In addition, respiratory patients and those who come into contact with harmful environments should not be exposed to fine dust for a long time. Before enjoying a spring outing, it is essential to first grasp the current status of fine dust provided by the air environment information website and air pollution-related apps. In addition, it is necessary to strengthen hand washing hygiene and properly maintain indoor humidity by using humidifiers.

Cho Eun-young, a specialist, said, "If you drink a lot of water, it is important to drink more than eight glasses of water a day because it can prevent the drying of the respiratory mucosa and prevent the penetration of fine dust components.

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