Can't eat hard things, food should be taboo, eating spicy or seafood is easy to cause allergies, and tropical fruits such as mango and pineapple are also easy to cause allergies. When allergic, the skin will be red and rash, and there will be symptoms such as molting and itching. Because plastic surgery mostly has skin incision, allergy may cause edema at the surgical site, leading to delayed healing of the incision. If you scratch the skin at the plastic surgery site because of skin itching, it may also lead to local infection.