She needs to change her pads and refresh her wudu for each prayer. If she feels that she was discharging the istihatha during the prayer, her prayer is still valid.
We rely on our generous community to create a lasting impact and ensure the continuous operations of your Masjid as the gathering place, school, and house of worship for Muslims across the Triangle.
Those who spend their wealth in charity day and night, secretly and openly—their reward is with their Lord, and there will be no fear for them, nor will they grieve.”
– The Holy Quran 2:274