If your 11-month-old baby has a fever of 38.1 degrees, it is recommended that you seek prompt medical attention and make a comprehensive diagnosis based on your baby’s signs and accompanying symptoms. If the 11-month-old baby fever to 38.1 degrees, belonging to the range of moderate fever, commonly associated with infectious diseases, you can observe whether the baby has other accompanying symptoms, such as coughing, vomiting, diarrhea, bloody stools, shortness of breath, headache, coughing up sputum, hematuria, urinary frequency and other manifestations, you can go to the hospital in a timely manner, in the operation of a professional doctor for a physical examination, improve the blood routine and other related examinations, according to the results of the examination, diagnosis. If the baby fever, usually common in infectious diseases, such as upper respiratory tract infection, may be accompanied by cough, runny and other manifestations, in addition, such as toddler emergency rash and other diseases can also be fever as the first manifestation. After the fever subsides, the rash may increase. If you consider the upper respiratory tract infection department to be budesonide nebulization and other symptomatic supportive treatment, if you consider the possibility of toddler’s emergency rash, physical cooling, rehydration and other symptomatic supportive treatment. In addition, there are many other diseases that can cause fever in babies, it is recommended that if your baby has a fever, you should bring your baby to the pediatric outpatient clinic of the hospital in a timely manner, under the guidance of the doctor to be targeted treatment.