Infection might be in your kidney or
ureter.
Kidney pain is usually located in back which might radiate to thigh or leg if infection has affected your ureter. You are taking antibiotic. Pain will resolved after total clearance of infection. It will take few days.
Advice
1.
Dicyclomine 20 mg every 8 hours per oral for pain
2. Drink 4 – 5 liters of uncontaminated water to flush out bacteria
3. Syrup alkaline citrate 2 teaspoonful three times daily for 1 week
4. Continue
cephalexin as suggested by your doctor
5. Drink fruit juice and cranberry juice
6. Do not hold your urine. Urinate when you feel
7. Wipe from front to back after bowel movements
8. Urinate after having sex to flush bacteria
9. Investigations
a. routine examination of urine
b. culture & sensitivity of urine
c.
ultrasound abdomen and pelvis
I hope this information will help you. I will be happy if you ask another question
Thanks