I'm sorry to hear that Are you still using Kenacomb? I was told to put it on 3 times a day. I still have nipple pain but it is bearable. My DS has tongue tie so I know that causes some of my pain too. For nipple thrush, I was also told to wash my nipples in a solution of bicarb soda and water - 2 teaspoons bicarb to 2 cups lukewarm water.
I have also heard that you can do the Diflucon treatment again but I have not felt the need to do that. My LC also gave me a nipple shield (I haven't used it). Did your LC discuss this with you?