You can eat egg custard after a cold. Egg custard is rich in protein and cholesterol, but generally speaking, you should not eat too much of it, otherwise it may cause indigestion. If you eat too much egg custard, you may experience nausea, vomiting, abdominal pain, diarrhea, stomach discomfort, and so on. In addition to eating egg custard after a cold, you should generally pay attention to eating foods that are digestible and nutritious, such as vegetable porridge, vegetable noodles, tomato and egg noodles, and so on. But avoid eating spicy, stimulating, fried, greasy and cold food, such as spicy hotpot, spicy pot, fatty meat, fried chicken, food just taken out of the refrigerator, ice cream and so on, especially stress not to overeat. After the cold, you should also pay attention to rest and drink more water, but you should pay attention to drinking water, if you are an elderly person, you should drink a small amount of water several times, do not drink too much water at once and cause heart failure.