The reasons for sore throat after drinking are as follows: 1. The most common factor is infectious, such as acute laryngitis after drinking alcohol, when there will be local redness, swelling, heat, pain and dysfunction, especially in the local larynx is particularly prone to laryngeal edema and lead to sore throat. 2. After drinking alcohol, the peripheral capillaries will expand rapidly under the action of acetaldehyde, especially in the throat, where the local capillary distribution is richer. The most important thing is that the patient’s throat will be more sensitive and obvious after drinking alcohol, for example, if the patient has previous connective tissue disease.