Chloe's advice is good - maybe try a warm compress before expressing and massage the lump gently while expressing. Some milk will dry up by itself, but you probably shouldn't have sore spots. I was pg when Jack self-weaned, so my bbs probably weren't totally normal then, but I don't remember having any sore spots or lumps. And it's more important to avoid mastitis than to get the milk to dry up more quickly. It sounds like you're nearly there though.