If a girl has a UTI, first of all, she should rest in bed during the acute phase of the UTI, drink more water, urinate more often, and get enough energy and calories. Secondly, choose antibiotics with low toxicity for children to carry out anti-infection treatment, such as cephalosporins, such as cefadroxil or cephalexin, which are commonly used. In addition, penicillins, such as amoxicillin, can also be used to treat urinary tract infections in children. However, it is important to note that quinolone antibiotics such as levofloxacin are not recommended for use in children. Treatment of UTIs in girls requires at least 5-7 days of medication. If the UTI is considered to be caused by a fungal infection, antifungal medication should be used to treat it. UTIs in the acute stage can generally be effectively controlled with an adequate amount and course of antibacterial treatment. However, there are still some children who may have relapses. If a relapse occurs, a urine culture should be performed in a timely manner to clarify the type of infection and switch to other more sensitive drugs for a full amount and course of treatment. And it is necessary to investigate whether there is a urinary tract abnormality that causes recurrent attacks, and if there is a urinary tract abnormality, surgery is needed to solve the problem after a clear diagnosis.