We give antibiotics if we think your baby has an infection. Some infections can make a baby very sick.
A lot of antibiotics are given via a drip (cannula) within the vein, straight in to the blood stream, in order that they can work more quickly. They are stopped after it is safe to do so. Normally they can be given for 2-7 days, depending on the germ they may be sick with. In very rare cases, they may be given for a longer period of time.
It is therefore extremely important that any infections are treated. This may delay your baby from coming home, but will make sure that the infection is treated.