Throat feeling something against the top of the throat is clinically called pharyngeal heterosensitivity, and in Chinese medicine is called plum kernel gas, which is a symptom of chronic inflammation of the throat. In chronic pharyngitis, the mucous membrane of the throat is irritated by inflammation, and the mucous membrane is congested, and scattered hyperplastic lymphoid follicles appear at the root of the tongue and the back wall of the throat. If the lymphoid follicles are overgrown or too large, the patient will experience foreign body sensation to varying degrees. In terms of treatment, the main symptomatic use of Chinese herbal medicines to clear the pharynx, such as Golden Voice and Pharynx Pills or Golden Xuan Li Pharynx Granules, can also be combined with the use of anti-inflammatory oral tablets, such as Huasu tablets or watermelon cream. If available, ultrasonic nebulizer inhalation treatment can be done. Some lymphatic follicle hyperplasia is serious, and conservative treatment is not effective, you can also do low-temperature plasma radiofrequency ablation surgery, which is also helpful for the recovery of the disease.