Girls ate half a pineapple mouth swelling bleeding, may be produced by inflammatory reaction, allergic reaction caused by the need to immediately stop eating, and then local hemostasis. If the allergic reaction, inflammatory reaction is more serious, need to take oral medication. 1. Stop eating: stop eating immediately to avoid repeated stimulation of the oral cavity, resulting in bleeding from the oral cavity or aggravate the degree of swelling, and then rinse the mouth with lukewarm water after stopping eating to clean up the residual tissue. 2. Local hemostasis: If the oral mucous membrane is seriously damaged and the bleeding is relatively large, the mouth can contain ice water to stop bleeding and prevent the bleeding from continuing to increase. 3. Oral medication: If eating pineapple produces an anaphylactic reaction, you can follow the doctor’s instructions oral antihistamine anti-allergy treatment, such as cetirizine, loratadine, etc.; combined with inflammatory reactions, you can follow the doctor’s instructions oral cefixime. If an allergic reaction occurs, it is recommended to consult a doctor in time to avoid delaying the condition. After eating pineapple caused oral discomfort, you can stop eating and rinse your mouth in a timely manner, if rinsing and containing ice water can not be relieved, we should consult a doctor in a timely manner.