One-week-old baby fever does not have the most effective treatment, need to be targeted according to the cause of the treatment, generally seen in respiratory diseases, gastrointestinal diseases or Kawasaki disease, but also seen in physiological fever, according to the cause of the appropriate treatment, such as Kawasaki disease need to use gammaglobulin and other treatments. 1. Respiratory tract infections: such as early childhood acute rash, mostly in this age group, caused by viral infections, can be manifested as recurrent fever, high fever for 3 to 5 days after the heat out of the rash, the treatment requires the use of antipyretic drugs (eg, ibuprofen) to reasonably reduce the fever, and at the same time to carry out the appropriate supportive therapy. 2. Gastrointestinal diseases: such as acute diarrheal diseases, the above manifestations can occur, accompanied by diarrhea or vomiting symptoms, treatment of suspected bacterial infections, the use of antibacterial drugs (such as cefaclor) anti-infective treatment, oral montelukast to alleviate diarrhea, and reasonable symptomatic antipyretic and other treatments. 3. Kawasaki disease: also known as cutaneous mucocutaneous lymph node syndrome, clinical recurrence of fever, anti-infective treatment is ineffective, accompanied by rash, conjunctival congestion and other symptoms, the treatment requires the use of gammaglobulin and aspirin and other therapies, the need for active treatment to avoid complications, such as coronary artery dilation and so on. 4. Other: if the baby in the activities, crying can also appear temperature rise, belong to the physiological fever, usually no other abnormal discomfort, no special treatment. Fever is recommended to actively consult a specialist physician to determine the treatment, to be recovered, the body temperature can gradually normalize. All of the above medications should be used under the supervision of a doctor.