Asalamu alaykum. Im recently hearing that a woman cannot remove any hair at all on her face. I have hair on my forehead, cheeks, side of face and mustache. i can't get rid of any of this? would u know what the female companions did?

Wa Alaikumussalam Wa Rahmatullahi Wa Barakatuh. It is allowed for a woman to remove her facial hair. However, what is haram (forbidden) is an-nams, which is the removal of the hair of the eyebrows only. Even the middle brow, the hair between the two eyebrows, is allowed to remove. BarakAllahu Fiikum.