Sheikh Muḥammad Al-’Ansi ḥafidhahullāh explains in his answer to the above question that a woman should not open the door to waswaas (whispering) upon herself.

The other question asked here was regarding the brownish/yellowish discharge (الكدرة والصفرة) and the white discharge when a women comes off her menses, are these najis? He said: As for the كدرة & صفرة, this is considered najis because it contains traces of menstrual blood [if it occurs during the menses]. As for the whitish discharge, if it has traces of menstrual blood it is najis also, but if continues to come out and is not contaminated with menstrual blood, then it is pure, as it is discharged from the uterus. Even if it is pure, for peace of mind she should still clean it and remove it from her garment. Paraphrased!