Babies with fever and cough again three days after discharge from the hospital with pneumonia can be treated by general therapy and medication. This situation is mostly due to re-infection by pathogenic microorganisms or cold and other factors. 1. General treatment: first of all, you need to let the child drink more warm water, can promote the metabolism is conducive to the recovery of the disease; must strengthen the care and warmth, to avoid getting cold again, if the weather in the cold season, you need to give the child to add clothing in a timely manner; let the child to eat some fresh fruits and vegetables and food rich in high protein, you should avoid greasy, cold, fried and other foods. 2. Medication: If the condition is mild and bacterial infection exists, antibacterial drugs (such as cefixime granules) can be applied under the guidance of physicians; if viral infection exists, oral antiviral drugs (such as oseltamivir phosphate, etc.) and other medications can be used for treatment; if the child’s condition is more serious, he/she needs to go to the hospital again for treatment, and hospitalization can be done through intravenous antibacterial drugs, nebulized inhalation and other methods of treatment. If you have any of the above conditions, you should take your child to the hospital in time to be treated by a physician according to your child’s condition.