She sees a dry brownish-reddish spot a few days before her period

No File Exists
Check below answers in case you are looking for other related questions:
Rulings on istihaadah
Is it permissible for a menstruating woman to touch the colour-coded tajweed Mushaf?

No File Exists
Related Answers:
She is asking about a specific du’aa’ for when she finishes her period
He committed zina with a woman when she was menstruating; does he have to offer the expiation for having intercourse during menses?
Brownish discharge one day after menses ended
Rulings on istihaadah
Is it permissible for a menstruating woman to touch the colour-coded tajweed Mushaf?

Recommended answers for you:
The proper way to make du’aa’ during prayer
Description of the funeral prayer
Ruling on wearing one's clothes below one's ankles
How to protect oneself against the evil eye
Celebrating birthdays is not allowed