Pineapple eat more mouth pain, because the pineapple contains excessive organic acid acidic substances, vitamins, histamine substances, will be the mouth of the weaker mucous membrane caused by certain stimulation and injury, this time the rapid solution to the following points. 1, you can gargle with light saline, such as salty brine with less salt into light saline, gargle with light saline, especially local pain in the corner of the mouth parts, with light saline. After gargling can play and pineapple in the acidic substances, play a role in relieving the effect of pain. 2, the application of glycerin for local mouth wipe, can also play a role in relieving the effect of mouth pain. 3, the application of drugs to treat mouth ulcers, such as compound chamomile Lidocaine Gel, Benzocaine cream, etc. can alleviate the pain in the mouth.