Eat a pineapple tongue tingling, if it is a specific substance stimulation caused by, most will recover by themselves; if it is caused by allergic reaction, should choose antihistamine drug treatment. 1. Specific material stimulation: pineapple contains pineapple protease and glycoside organic matter, will decompose protein, the oral tongue caused by stimulation, causing tongue tingling, generally only transient pain, most will recover, pay attention to oral hygiene, drink more water to promote the metabolism, generally do not need special treatment. 2. Allergic reaction: the oral mucosa may be allergic to a certain component in the pineapple, caused by mucosal swelling, resulting in tongue tingling symptoms. You can gargle with light salt water and take antihistamines such as loratadine and cetirizine for treatment. If you need to use medication you should be checked by a doctor first, and the medication should be used under the guidance of a medical professional. If the tingling of the tongue is difficult to relieve, or other discomfort occurs, you should seek medical attention.