Pharyngitis is a common and frequent disease in otolaryngology head and neck surgery, so it is primarily necessary to visit the department of otolaryngology head and neck surgery for diagnosis and treatment. In hospitals with more specialized departments, one can also directly visit the pharyngology department for diagnosis and treatment. It is important to understand that there are many causes of pharyngitis, such as gastroesophageal reflux disease. Besides seeing an otolaryngologist, it might also be necessary to consult with gastroenterology or thoracic surgery, as these are related departments. If the pharyngitis is caused by an allergic disease and involves allergic factors, in addition to visiting otolaryngology, it may be necessary to consult other departments such as the department of allergic diseases or respiratory medicine, depending on the specific circumstances. In summary, the primary department to consult for pharyngitis is otolaryngology head and neck surgery.