Can a woman tie a cover over her face, or put a cover on her head without tying it, because during tawaf and sa‘i, it is not easy to see clearly if we lower the jilbab over our faces?

Praise
be to Allah

There is nothing
wrong with tying a cover over the face, if it is not possible to do it
except by tying it, whether one is in ihram or otherwise.

End quote.