The Mourning Woman Should Not Use Perfume Nor be Proposed to, Except by Suggestion
Question :
Is it permissible for the woman mourning for her husband to wash her children and perfume them. And may marriage be proposed to her while she is in her waiting period?
Answer:
It is not permissible for the woman who is mourning her husband's death to touch perfume during her waiting period, because the Prophet ﷺ forbade that. But there is no objection to her giving it to her children or her guests to wear, without joining them in it. And it is not permissible for her to be openly proposed to until she completes her waiting period, but there is no objection to suggesting it to her indirectly, according to the Words of Allah, Most High:
"And there is no sin on you if you make a hint of betrothal." So Allah, Most Glorified has permitted a hint, but He has not permitted a clear proposal, and to Him, Most Glorified belongs the most far-reaching Wisdom in that.
Source:
Ibn Baz
Fatawa Islamiyah, Vol. 6 Page 110