The claim that white radish cures trigeminal neuralgia is inaccurate; food does not have a therapeutic effect. Trigeminal neuralgia is the pain of the frontal, ophthalmic, and maxillary branches of the trigeminal nerve in the face, usually manifested as unilateral facial pain. Some patients have heard that sliced white radish applied to the painful area has a therapeutic effect, in fact, the statement is not true, white radish used for external application can only temporarily relieve the pain and reduce the nerve pain. Usually, some patients with trigeminal neuralgia can improve their symptoms after taking medications, such as carbamazepine, phenytoin sodium, gabapentin, and so on. However, for patients who do not respond to medication, radiofrequency thermo-coagulation or surgery is required. Persistent and severe unilateral facial pain requires prompt medical attention and standardized diagnosis and treatment.