Diffuse congestion of the pharyngeal mucosa is a clinical manifestation of acute pharyngitis, so how to prevent the occurrence of diffuse congestion of the pharyngeal mucosa, let’s learn more about it: 1, control the source of infection, should be early detection, early reporting, early isolation, early treatment. Isolation of patients is an effective way to reduce the spread of the isolation period of 1 week. Public places can be sprayed with 1% bleach clarifying solution or 3% peroxyacetic acid, or fumigated with vinegar. 2, cut off the transmission pathway, during the epidemic, to avoid gatherings or collective recreational activities, the old, young, sick and disabled susceptible to go to fewer public places, pay attention to ventilation, if necessary, disinfection of public places. 3, enhance physical fitness, prevent colds. 4, timely and reasonable treatment of acute rhinitis and respiratory tract diseases. 5, ban smoking and alcohol, do not eat spicy food, keep the mouth clean. 6, avoid dust, smoke, irritating gas. 1, general treatment, appropriate rest, into the light fluid food, drink more boiled water. Diuretic laxative, as far as possible to remove the causative factors, high fever, physical cooling, or with antipyretic analgesic. 2, anti-inflammatory treatment. 3, local medicine, you can use watermelon cream tablets for treatment. 4, less talk recently, do not eat spicy food, especially tobacco and alcohol must be given up, eat some laxatives, eat anti-inflammatory drugs.