Looking at Baudelaire and Les Fleurs du Mal has reminded me of Lautreamont's infamous Maldoror, another work valued by the symbolists.
I tried it once and got as far as Stanza 6: The Nails (The Reader as an Accomplice), which is just about the most irredeemably nasty thing I have ever read in my life. It actually made me uncomfortable about having the book in my possession. I couldn't relax until I got rid of it.
(Hint: This is not a recommendation.)