Gastrointestinal cold, i.e. common cold leading to digestive symptoms and persistent low fever, can be treated by general treatment and medication. 1. General treatment: adequate rest, timely nutrition and easy-to-digest food can help recovery; if the fever is lower than 38.5℃, use wet towel on forehead and warm water to wipe the body; if there is a large amount of sweating, dehydration, etc., water and electrolytes should be replenished in a timely manner. 2. Medication: At the same time to treat the original disease, you can use heat-clearing and detoxifying drugs, such as Pudilan oral solution and so on. In conclusion, when gastrointestinal flu with low fever persists, you should go to the hospital in time and be treated under the guidance of the doctor. The use of drugs need to follow the doctor’s instructions.