Pharyngitis is divided into acute pharyngitis and chronic pharyngitis, which is a common and multi-infarct disease. Many people think that pharyngitis is a minor disease that does not have a major impact on health, but this view is wrong. The next is the common complications of pharyngitis: acute pharyngitis patients have local symptoms such as dry throat and sore throat, sometimes the infection of the local foci to the deep invasion, but also cause fever, chills, headache, body aches and pains and other systemic symptoms, if, without timely systemic medication, it will cause damage to other organs or even important organs. If the pharyngeal infection spreads upward and spreads to the ear and nose, it can lead to acute rhinitis, sinusitis, acute otitis media, infection in these places, there is often physiological dead space, poor drainage of purulent secretions, bacteria are conducive to reproduction, antibiotics are difficult to reach the formation of effective antibacterial concentration, the formation of stubborn infection foci, together with repeated fever, causing harm to the body, and even cause inflammation of the brain; if the pharyngeal infection develops downward, it can invade the larynx, trachea and other lower respiratory tract, causing acute laryngitis, bronchitis, bronchitis and pneumonia, these infections can also cause many systemic complications, and even life-threatening. The chronic pharyngitis people often feel discomfort in the throat, a little cold, tired, or talk more, longer without water, will feel the sore throat, burning aggravated, pharyngeal itching caused by bouts of irritating cough, affecting the rest. The chronic pharyngitis, if left untreated for a long time, can cause a psychological burden, resulting in psychological disorders, while some pharyngitis caused by Streptococcus haemolyticus, some will produce specific immune complexes, these substances will trigger a metamorphic reaction, and damage the human heart valves, synovial and other connective tissues, and produce rheumatic heart disease, rheumatoid arthritis and other more serious diseases. Therefore, early detection and early treatment can eliminate or reduce the risk of these diseases caused by chronic pharyngitis. Therefore, friends suffering from pharyngitis must pay more attention to the preventive care of the disease. The most important thing to do is to strengthen your exercise and improve your resistance. In the winter time, rinse your mouth with light salt water and brush your teeth more often to keep the inside of your mouth clean. The diet should be careful not to eat too much irritating food, no smoking and no alcohol. If you are used to air conditioning or heating, try to control the difference between indoor and outdoor temperature within 10 degrees. Don’t just try to be comfortable and ignore your health.