3-year-old baby tonsil inflammation recurrent fever is mostly due to bacterial, viral infections caused by the use of general treatment and drug therapy. Need bed rest, into liquid diet and drink more water, strengthen nutrition and dredge stool. Maintain a certain degree of indoor temperature and humidity, and indoor air circulation. For babies with fever and other body temperature less than 38.5 ℃ can use antipyretic patches and other physical ways to reduce heat treatment; when the body temperature is more than 38.5 ℃ also need to use ibuprofen, acetaminophen and other drugs for antipyretic treatment. You can use compound borax gargle solution to gargle, or use warm sugar water to gargle. Localized use of a throat opener spray can be used to relieve symptoms. For viral infections, symptomatic treatment is the mainstay; for bacterial infections or combined bacterial infections, penicillin, cefixime, cefuroxime and other drugs can be used. All of the above drugs need to be used under the guidance of a doctor, avoid self-medication. When the baby has fever, cough and other discomforts, it is recommended to consult a doctor in time and be evaluated and handled by a specialist.