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Your doctor has prescribed you a good combination of drugs in treatment of UTI.If you can get an ultrasound
done to see kidneys , it can be told about the kidney involvement.Its not suggestive that infection is in kidney just because its taking lung to be treated.Symptoms like back pain
, intermittent abdominal pain
suggest of kidney involvement.Please drink lots of water(upto 5 liters) to fasten the improvement.Please follow the same treatment.