Syndrome differentiation of channel theory is an important dialectical method for Chinese medicine, and it has important guiding significance to the syndrome differentiation and treatment of aphthous diseases. However, the systematic literature and reports on the syndrome differentiation and treatment of aphthous diseases by channel theory have not been seen in the literature. Based on the classic works such as Huangdi Neijing and the combination of clinical practice, the article analyzes the theoretical basis of the use of meridian syndrome by analyzing the sore throat, introduces the clinica...