You can eat loofah tomatoes. Luffa is a nutritious food, and it is very rich in vitamins. If you have a cold caused by low immunity, eating loofah can have a certain relief effect. Tomatoes are a particularly nutritious food, and they also contain vitamin C, which can strengthen physical fitness and immunity, so it has a certain preventive effect on colds. But when you have a cold, you should make it lighter. If you make soup, you can add some ginger slices to it.