How long do antibiotics take to cure a UTI?
Most women begin to feel symptom relief from UTI antibiotics within 24–48 hours, but it’s important to finish the prescribed course to ensure full recovery and prevent recurrence.
Detailed Medical Explanation
Antibiotics for lower UTI (such as nitrofurantoin or trimethoprim) typically provide significant relief within 48 hours, although a full course (usually 3–7 days) is needed. Not finishing the course can allow bacteria to survive and cause another infection. Persistent or worsening symptoms may indicate resistance or complications—seek further advice. NHS: UTI antibiotics timeline.
Clinical Context
Most clinics advise a full antibiotic course even if you feel better. Contact your healthcare provider if symptoms persist after two days.
Evidence-Based Approaches
NHS and NICE recommend finishing the prescribed antibiotics to reduce recurrence and resistance.