3-year-old baby two months cold has not been good, may be the baby resistance is weak or combined with other diseases caused by, to participate in physical exercise, dietary modification, vaccination and so on to strengthen immunity, and secondly, should be a clear cause of medical treatment, for the cause of the treatment. 1. Increase resistance: 3-year-old baby two months cold has not been good may be caused by low immunity, usually let the baby appropriate to participate in physical exercise, eat a light diet, nutrition, comprehensive and balanced, drink more water, eat more vegetables, fruits, etc., is conducive to the recovery of colds. In addition, we should take vaccines, such as influenza vaccine, to prevent colds. 2. For the cause of treatment: 3-year-old baby two months cold has not been good to find the cause of the cold, such as cold combined with tonsil inflammation pus, need to comply with the medical prescription standardized antibiotic anti-infection treatment, such as amoxicillin, cefixime. Such as allergic rhinitis to avoid contact with allergens, if necessary, need to take anti-allergy drug treatment, such as loratadine. 3-year-old baby two months cold has not been good, it is recommended that timely medical care, clear reasons for targeted treatment, the above drugs used in accordance with the doctor’s instructions.