Pineapple eaten tongue pain, you can use light salt water, milk, etc. for relief, when the pain is serious, you can use gargle, analgesic drugs, etc. for treatment. Pineapple contains bromelain, which has the function of catalyzing protein hydrolysis. After eating pineapple, this protease can stimulate the mucous membrane of the tongue, resulting in tingling, numbness and other discomforts. When the symptoms are mild, neutralize the bromelain with salt water or milk and avoid eating pineapple for a short period of time. When symptoms are severe or even localized ulcers appear, gargles such as 0.05% chlorhexidine gargle and 0.1% isacridine liquid can be used, as well as ibuprofen and diclofenac sodium for pain relief. The specific treatment depends on the situation, and when the symptoms are serious, it is recommended to follow the doctor’s prescription.