There is only a small white spot and grinding in the throat, which may be caused by pharyngitis, chronic tonsillitis, pharyngeal keratosis and other factors. It is recommended to clarify the diagnosis, give targeted drug treatment, and if necessary, treatment through surgery. 1. Pharyngitis: poor immunity, bacterial infection, caused by pharyngeal inflammation, long-term inflammation of chronic stimulation, may lead to the local appearance of small white spots. It is recommended to improve the body’s immunity, if necessary, give cefixime, amoxicillin and other drugs anti-infection treatment, can promote recovery. 2. Chronic tonsillitis: repeated episodes of acute tonsillitis may form chronic tonsillitis, which may lead to dry throat, itchy throat, foreign body sensation in the throat. Transfer factors can be given under doctor’s guidance to improve the body’s immunity. If the symptoms further aggravate or recur frequently, consider surgical treatment if necessary. 3. Pharyngeal Keratosis Pilaris: It is mostly seen in women, mostly develops between the age of 15~40, and is especially easy to be seen in people with mental depression. Consider removing the keratosis plugs and cauterizing their attachments with electrocautery to make them crusted. Currently, laser or freezing is used instead of electrocautery. If the lesion is confined to the palatine tonsils and the symptoms are severe, or if the tonsils have become inflammatory, tonsillectomy may be performed. If you find a small white spot inside your throat and feel a foreign body sensation, you can go to the ENT department of the hospital to look for the cause and follow the doctor’s instructions to standardize the use of medication and treatment.