Advice on getting rid of thrush!

Kat

Okay this is going to be a long post. My LO has had thrush basically since she's been born I feel like and she's been treated for it and still has it. She's almost 11 weeks old. Her pediatrician put her on liquid nystatin 2x and then Diflucan and she still has it! We sanitize her bottles, she gets a new sanitized bottle at EVERY feeding.I also sanitize my pump parts every day and clean them with hit water and soap after every use. I've even treated my nipples with nystatin cream just in case I had it as well ( I exclusively pump). I've literally done everything i can do. I'm getting pissed off with her doctor because i think its ridiculous that she still has it. I'm sick of giving my little girl medicine at such a young age. Especially when it's not even working! Please help!