If she sees the flow of the blood, she must stop until the total days of bleeding exceeds 15 days. Once this happens, she takes ghusul and prays and fasts and consider it to be istihada until the regular time of her menses.

Read more

Lawfully, until the nifaas period is over, which is maximum of 40 days, but if the doctor says that this should be for a longer period due to some health circumstances, then you should follow his advice.

Read more