Pharyngitis is difficult to treat because of the location of pharyngitis. Usually the location of pharyngitis in a narrow sense is the area where the back wall of the pharynx can be seen with an open mouth, and it is common to have acute pharyngitis and chronic pharyngitis. Acute tonsillitis and chronic tonsillitis, in a broad sense, also belong to the pharynx inflammation. Due to the special location of the pharynx, it is the common channel of the respiratory and digestive tracts. Bacteria, viruses, dust, smoke, alcohol in the air and sour, sweet, bitter, spicy and salty in food are a stimulus to the mucous membrane of the pharynx, so the inflammation is difficult to cure. There are very many drugs for the treatment of pharyngitis, and from another point of view, it is that none of the efficacy is exact and none of them can be completely cured. Relatively speaking, budesonide, gentamicin nebulized inhalation treatment, twice a day, five days a course of treatment, the effect is better, local absorption, local treatment, with iodine glycerin twice a day to apply the pharynx, the effect is better.