Many people are allergic to mangoes. The main allergenic components of mango allergy are lacinol, pinene, limonene, etc. After consumption, the allergic manifestations are mostly hives, erythema, angioedema, etc. Your case is probably caused by allergy to mango. Please stop eating mango immediately and rinse your mouth with water. If the symptoms are not too serious, it is recommended to observe first to see if the symptoms improve, if the symptoms worsen, you need to seek medical attention in time.