Lychee is hot in nature and is a food that can easily cause fire. So people with internal heat, swollen gums, bleeding nose, etc. try not to eat lychee. Lychee belongs to the fruit food, but there are some people with special constitution are easily allergic to lychee, eating lychee allergy mainly manifests skin itching, red spots, edema. If you are allergic to lychee, first of all, avoid scratching, if the allergy is more serious, you can take some anti-allergy drugs, such as loratadine. Avoid eating allergic fruits again.