How to treat a fever in a half-year-old baby, first look at the baby’s specific temperature is how many degrees, fever, not all cases are the need to use antipyretic drugs. If the baby has a high fever, the temperature is above 39 degrees or around 38.5 degrees, the baby is not in good spirits, you can choose to use antipyretic drugs, you can eat Merlin to reduce fever, while using fever patches can cool down; if it is a low fever, such as below 38.5 degrees, the state of mind is still relatively good, this time there is no hurry to use antipyretic drugs, you can choose physical cooling, warm water to rub the body these methods to help cool down. Generally, if the fever exceeds 3 days, and the temperature still does not go down or is accompanied by violent cough and poor mental state, you need to go to the hospital, and it is best to check the blood count.