cold medications are rarely used in this age group. infant colds are typically treated with saline nasal drops with mucous aspiration using a bulb syringe and a cool mist humidifier. if a one month old is having a fever seems to be worsening or "can't breathe" as you stated it would be wise to seek medical care. colds in a one month old with their immature immune systems can lead to more serious complications like pneumonia. in most cases however colds are simply annoying and self-limiting.
my one month old has a cold. runny nose sneezing cough cant breathe and more what can i give her?