Eating pineapple tongue numbness is generally a normal phenomenon, pineapple contains pineapple enzyme, alkaloids can cause tongue numbness phenomenon, can be relieved by drinking salt water or drinking milk and other ways. May also be caused by allergies, can be treated by taking medication. 1. drink salt water: salt water can inhibit pineapple biosides in the oral cavity in the activity, reduce its stimulation of the oral mucosa, so after eating pineapple tongue numbness, you can drink salt water gargle, help relieve the phenomenon of tongue numbness. 2. drink milk: milk in the protein content is very high, drink milk can help reduce the pineapple enzyme decomposition of protein on the tongue of the odds, increase the decomposition of milk in the odds of protein, so as to achieve the relief of tongue numbness discomfort. 3. taking medicine: some patients consume pineapple after tongue numbness may also be allergic phenomenon, contact with pineapple caused by allergic reaction may appear tongue numb phenomenon. Allergic to pineapple patients can use chlorpheniramine maleate, cyproheptadine hydrochloride and other drugs under the guidance of the doctor for treatment. If patients eat pineapple tongue numbness situation is not relieved, or accompanied by other symptoms, should promptly go to the hospital, clear reasons for targeted treatment, the use of drugs need to follow the doctor’s instructions.