I got a milk blister/clogged duct just over a month ago. I was able to remove the skin from the blister which did unclog the duct. However, the spot where the blister used to be is still very sore. It's not red, is only slightly swollen, milk is coming out of it, but my baby will occasionally suckle a little when he's falling asleep and its so sore that it about makes me want to jump out of my skin. I'm not concerned about infection b/c there are just not any signs of that, but I'm wondering why this soreness is sticking around so long. Thoughts?