The most likely cause of burning sensation in the tongue is oral mucosal dryness syndrome, which mostly occurs in menopausal and post-menopausal women aged 40-50 years old. Due to immune dysfunction, salivary gland function is impaired, causing a significant decrease in saliva secretion, resulting in extreme dryness of the oral mucosa, as well as a burning sensation in the mouth, and patients may also experience numbness, pain and taste disorders in the tongue. The burning and dryness of the oral mucosa can cause discomfort in the mouth after talking for a long time and make it difficult to swallow drier food. Patients with burning sensation on the tongue should drink more water, eat more fresh vegetables and fruits, and supplement with vitamin C and vitamin B. If the dryness and burning sensation are particularly severe, artificial saliva can be used to relieve the symptoms, and at the same time, you can also take Bai Shao total glycoside capsule orally, which can regulate the immunity of the body and has certain effect on the treatment of oral dryness syndrome.