The snail is a mollusk that is widely distributed in China’s freshwater waters, rivers, lakes, and rice paddies. It is cold in nature, so it does not play a bad role in the treatment of fever, especially infectious fever, and the snail does not have a spicy taste, so it is not a hairy substance. If the patient has a weak spleen and stomach and is recovering from a disease, it is best not to eat the snail because it is after all an aquatic animal, which is relatively difficult to digest, and because the snail lives in freshwater mud, it contains more parasites. The appearance of these symptoms has nothing to do with the nature of the snail itself, but is produced during the cooking process, so the snail does not meet the characteristics of hairy substances in traditional Chinese medicine and does not belong to hairy substances.