Bacterial infections in children are mainly due to their young age and weak resistance, which can lead to bacterial attacks. And if there is cold, malnutrition, etc., will further weaken the child’s resistance, and then cause bacterial infections. Common symptoms 1. respiratory tract infection: coughing, coughing, coughing, runny nose and other symptoms, and in severe cases, respiratory distress, common in tonsillitis; 2. digestive tract infection: abdominal pain, diarrhea, dehydration and high fever, common in enteritis; 3. brain infection: dizziness, headache, coma, convulsions and other symptoms, easy to induce bacterial meningitis. Treatment can generally be under the guidance of professional doctors, the use of pediatric cefixime granules and other anti-infective treatment; oral ibuprofen suspension mix to relieve fever symptoms; through montelukast antidiarrheal treatment; timely hydration to prevent water and electrolyte disorders; the use of pediatric aminophenol xanthamine granules to improve the symptoms of runny nose, nasal congestion and so on. Attention should be paid to timely and reasonable matching of children’s diet, attention to hygiene, diligent hand washing before and after meals, and more physical activities to enhance physical fitness and improve the immunity of the body.