My daughter feels like a uti might be starting. aside from drinking water, is there anything preventative to do?

Cranberry juice: Some cases drinking cranberry juice may be helpful but don't wait too long as a kidney infection may result from a simple bladder infection. Fever or chills or back pain warrant immediate evaluation.

Cranberry juice: You can try cranberry juice, but ultimately she should have her urine tested to see if bacteria is present as an antibiotic would then be the most appropriate treatment.