Hi, Please do not neglect kidney infection in your daughter. You must consult a pediatrician and urologist and get her treated immediately.Do not be afraid of catheterisation or IV medications. If you do not take her to doctor on time then kidneys can get permanently damaged and can also be a threat to her life involving complications like kidney abscess or sepsis. A kidney abscess is a rare but serious complication of a kidney infection. It s when pus develops inside the tissue of the kidney. This can happen if the kidney infection is not treated. Making her drink water will not prevent an abscess from forming if she is having the infection. Kidney abscesses are potentially serious because the bacteria inside the abscess can spread to other parts of the body, such as her bloodstream or lungs, and can be fatal. Sepsis is another rare, but potentially fatal, complication of kidney infection. It happens when bacteria spreads from the kidneys into the bloodstream. Once bacteria are in your blood, the infection can spread to any part of her body, including all of the major organs.