It is narrated from Hazrat Umm Salamah (may Allah be pleased with her) that she asked the Prophet (peace and blessings be upon him) about the ruling for a woman whose blood continues to flow constantly. The Prophet (peace and blessings be upon him) said that she should wait for as many days and nights as she used to experience impurity previously, and estimate those days in the month, and refrain from prayer for that period. After that, she should perform ghusl, tie a cloth, and start offering prayers.