HELP! My baby has UTI

My baby today was diagnosed he has UTI. He is 1 year old. Dinala namin sya sa ER. Pero sabi ng doctor OPD nalang, bibigyan lang ng gamot. Nilalagnat parin siya hanggang ngayon, simula kahapon ng gabi. Pinakain kasi sya ng blended apple juice. After that nag trigger yung fever nya at nag susuka sya. Please give me some home remedies or suggestions about this. Every detail can help.