Just ate a mango and my throat is very itchy almost to the point of vomiting never been allergic?

Allergic reaction: Allergies such as this can be serious and even deadly. To be safe, it would be best to go to the nearest emergency room or urgent care center, especially if you are having any trouble breathing.

Mangoes: Mangoes can contain allergens: Urushiol, cardol & limonene. Allergic reaction to mangoes include bullous cheilitis, urticaria, & contact allergic dermatitis. Most people don't have sensitivities to Mangoes but some may have severe food allergies to Mangoes. Recommend immediate evaluation due to fact that this may be involving your airway.