All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu 'alyhi wa sallam, is His slave and Messenger. Shaykh Ibn ‘Uthaymeen said: "If this discharge is pure, nothing should be done, but if it is impure, which is the discharge that comes out of the bladder, she should wash herself." Allaah Knows best.