Eating pineapple tongue numbness, generally considered and pineapple enzyme has a certain relationship, first stop eating pineapple, can take physical therapy, medication and other measures. 1. Stop eating pineapple: Pineapple contains pineapple enzyme which may cause tongue numbness, so you should avoid eating pineapple again to remove the triggering factors. 2. Physical therapy: gargling with salt water or cold water can reduce local irritation and relieve symptoms, and you can also drink some milk to relieve discomfort. 3. Medication: If the symptoms persist, also consider the allergic factors, you can take loratadine and other drugs for treatment. Eat pineapple tongue numb, such as long time difficult to relieve, or other discomfort, should go to the hospital for examination, drugs need to be used under the guidance of a professional doctor.