For treating a cold in a one-year-old baby, we mainly handle symptoms as they appear. If the baby has only occasional mild coughing or a slight fever, if they can eat and drink, and if their spirits are good, then parents don't need to worry too much, and special treatment generally isn't necessary. However, if the baby has a severe cough that affects their breathing, a fever over 38 degrees Celsius, and their spirits are not good, it is important to take the baby to the hospital for timely treatment. It's important to emphasize that parents should not arbitrarily use medications to treat the baby, as many cold medicines intended for adults should not be used for babies.