Diagnosis typically starts with a urine sample tested for bacteria and white blood cells. A midstream urine collection helps reduce contamination. If the infection is straightforward, GPs or pharmacists may recommend a short course of antibiotics tailored to likely organisms and local resistance patterns. For recurring or complicated cases, culture and sensitivity testing guides targeted therapy. Alongside medication, simple measures—drinking extra fluids, avoiding irritants like strong soaps, and resting—support recovery. Return for review if symptoms persist beyond 48–72 hours, or sooner if you develop fever, nausea, or back pain indicating possible kidney involvement.