The burning sensation on the back of the tongue and the upper teeth chamber (palate) and the inability to eat hot things may be caused by diseases such as lichen planus, burning mouth syndrome or papillitis of the tongue, which need to correspond to the taking of medication or psychotherapy. 1. lichen planus: oral lichen planus can be seen in the oral cavity white reticular streaks, self-conscious roughness, wood astringent, burning sensation, the treatment of the use of retinoic acid cream or dexamethasone and other glucocorticosteroid drugs. 2. Burning mouth syndrome: affected by a variety of psychological factors, there may be burning mouth syndrome, manifested as a burning pain in the tongue and palate, may not be accompanied by oral mucosal damage. Generally, psychological treatment, if necessary, take anti-anxiety drugs such as ghrelin, to remove the local stimulating factors. 3. Tongue papillitis: when eating and drinking too hot food may cause damage to the back of the tongue and palate mucosa, local mucosal inflammation, burning pain when eating food, the treatment generally remove the external stimulating factors, eat less hard and too hot stimulating food, chlorhexidine gargle can be used to gargle and so on. When there is inflammation or abnormal sensation in the mouth, it is recommended to go to the hospital in time for examination and timely treatment, and the medication should follow the doctor’s instructions.