7 months baby fever 39 degrees with diarrhea, may be caused by infectious enteritis, usually through the drug treatment. 7 months baby fever 39 degrees with diarrhea, may be caused by infectious enteritis, you can take oral acetaminophen or ibuprofen suspension symptomatic antipyretic, at the same time you can take oral bacillus subtilis bacillus granules, bifidobacteria, etc. to regulate intestinal flora. You can also take oral montelukast for diarrhea and oral rehydration salts to prevent dehydration. If the child’s diarrhea is severe, accompanied by obvious symptoms of dehydration, it is best to choose intravenous fluids. If the bacterial infection, according to the drug sensitivity selection application of antibacterial drugs such as ceftriaxone sodium, ceftazidime and so on. 7 months baby fever and diarrhea should take the child to the hospital in time to avoid delay. The above drugs need to be used in accordance with medical advice.