If you can drink, you can eat. Preserved eggs and lean meat are rich in minerals and essential fatty acids, which have the effects of moistening the lungs, cooling the intestines, stopping diarrhea and lowering blood pressure. Eating preserved eggs and lean meat porridge when you have a fever can remove the fire, which is conducive to rehabilitation, and you can also add some pig liver to cook together, which is more nutritious. But not too thick. But if you still vomit, you can drink some light rice congee or green vegetable porridge.