some questions

Can women wear sunglasses or sunscreen while in the state of Ihram?

Can we brush our teeth while fasting?

Re: some questions

In short the answers are going to be like this:

Glasses - not prefered - since they can touch face if no touch then ok
Sunscreen - not prefered - but okay for medical reasons and should be odourless
Brushing teeth - not prefered - but if done should be without scent, if not then without food like flavour, and not ingested best to use siwak.