French language Q&A Forum

Paul me fait mal  vs.  Elle me fait du mal quand elle dit ça.   I understand that du is for emotional pain and à is for physical pain, so why does the first example have neither?

Je me reposerai ici jusqu'à ce que le temps que je doive partir.

Merci d'avance.

I have just run across this sentence in my reading, and I don't understand how/why the adverbial pronoun is used:

The introductory sentence is part of a conversation: 

-Vous ignorez qu'il est le propriétaire des parfums et des produits de beauté Mylène?

This is followed by the following sentence, which is the author's omnipotent observation about how little Maigret knew about perfumes:  

Il s'y connaissait si peu en produits de beauté! 

I understand what is being communicated, but I don't understand the grammar!

Please explain why the "s'y" construction is in this sentence.  

Merci!