Antibiotics during labour

Common reasons include reducing the chance of passing group B streptococcus to the baby, treating suspected infection around the membranes, or providing protection before certain procedures. The maternity team usually gives the medicine through a vein so it reaches the bloodstream promptly.

The reason depends on your test results, temperature, how long the waters have been broken, the progress of labour, and the planned mode of birth. Antibiotics may be preventive when a known risk is present or therapeutic when clinicians suspect a bacterial infection.

The recommended drug can change if you have a previous severe allergy, a resistant organism was found, or another medicine could interact with it. Antibiotics treat bacteria; they do not directly induce contractions or provide pain relief.

Tell the maternity team about every medicine allergy and describe the reaction, including breathing problems, swelling, blistering, or a mild rash. Bring any group B streptococcus or urine-culture result that may not be in the hospital record. Mention recent antibiotics and any current fever or unusual discharge.

Ask why the antibiotic is advised, which medicine will be used, and how doses fit with the labour plan. If labour begins before a planned discussion, go to the maternity unit as instructed; do not take leftover tablets at home as a substitute for intrapartum treatment.

During treatment, immediately report itching with hives, wheezing, throat tightness, facial swelling, faintness, or a rapidly spreading rash. Staff can stop the infusion, assess breathing and circulation, and select another approach if needed.

Contact the maternity unit urgently for fever, feeling acutely unwell, reduced baby movement, foul-smelling fluid, heavy bleeding, or concerns after the waters break. These features need obstetric assessment regardless of whether antibiotics have already started.

Ask what finding led to the recommendation, what changes if labour progresses quickly, and whether the baby will need observation after birth. If you have an allergy label, ask whether the recorded reaction gives enough detail to choose an appropriate alternative.