Itchy throat after quitting smoking is mainly due to the patient’s long-term smoking, which leads to the patient’s own chronic pharyngitis. The patient may not notice or may have gotten used to it in the process of smoking in the past, and pharyngitis manifests itself after the patient does not smoke, so the patient feels pharyngitis manifestations such as itchy throat, dry throat, and foreign body feeling in the throat. Secondly, patients may experience withdrawal reactions for a short period of time when they quit smoking, feeling uncomfortable, itchy and dry throat, which can be distracted by drinking more water, chewing gum, etc. In conclusion, it is a common and frequent phenomenon for patients to experience discomfort such as throat after quitting smoking. Patients do not need to be overly anxious and should continue to quit smoking with firm confidence.