i was at the doctors monday and he said i have a large amount of puss in my urine. I have very severe pain in my lower back and pelvic area. I am nausous. He said i have a bad kidney infection. i am taking antibiotics which he doesnt think will help. when i finish them if i am not better he will have me admitted to the hospital. Right now i am in so much pain i cannot handle it. I wasnt sure what i should do. The antibiotics are for 5 days and i have been taking them 3 days so far. How can i relieve this terrible pain, i have taken percocet and is not helping. Should i get rechecked. Thanks so much! oh ya, i am a 27 year old female with right sided hydronephrosis .