The main cause of stomachache, fever and headache in children is inflammation of the gastrointestinal tract, which can be treated with general therapy and medication to relieve discomfort and improve symptoms. 1. General treatment: It is recommended to eat a light diet, avoid overeating, avoid spicy and stimulating foods, regular rest and relaxation, physical cooling and other measures to improve clinical symptoms. 2. Medication: Antibiotics such as penicillin and erythromycin can be taken to control inflammation; acetaminophen and ibuprofen can also be taken to reduce pain and lower the temperature. Drugs need to be adapted to the cause of the child’s illness under the guidance of a doctor, if there is an adverse reaction to timely medical treatment, drug allergy is prohibited. If a child has a stomachache, fever and headache, it is recommended to go to the hospital as soon as possible to avoid delays. The above drugs should be used under the guidance of a doctor.