Hi, The question is what is the cause of the burning. An infection in the
urineCalcium - urine
Calcium urine test
Chloride - urine
Cortisol - urine
Electrolytes - urine
Glucose test - urine
Hcg in urine
Ketones - urine
Kidney - blood and urine flow
Lh urine test (home test)
Ph urine test is a common cause of burning and is usually treated easily with antibiotics. An infection specifically in the urethra can cause burning (urethritis) and require a different type of antibiotic. If it's not an infection or antibiotics are unsucessful it could be a structural problem like a inflammation from a previous catheter in the bladder, a bladder tumor or a urethral diverticulum. She needs to see a Urologist who can do a urine check, physical exam and maybe a cystoscopy to look into the bladder to sort out the cause of the dysuria. Getting the correct diagnosis is key to getting appropriate treatment. Good Luck