The ruling on a woman applying perfume in the presence of women

Question:
What is the ruling for a woman who leaves her house for her school without having applied perfume, but when she enters her school she applies perfume, and she sits in the school for about four hours?

Answer:
There is no harm in applying perfume while she is among women; there is no harm in that. And when she goes out, if she goes out with her mahram, it does not harm either.
As for if she goes out with a driver who is not a mahram, she should use a perfume that is seen, but does not have a distinct smell. This was narrated from the Prophet (peace and blessings be upon him) that it is the perfume that should prevail, although there is weakness in its chain.
But she should observe this matter: she should not use perfume in the streets, nor with a non-mahram driver. And if she uses it in the school itself, it should be light so that its strength disappears when she goes out; the matter is broad in this regard.