Just thought I mention that yes Lansioh worked last week for myself, I had similar issue with my right nipple, I put my down to L's teeth, not actually getting anymore but moving down as they grow. I just put Lansinoh on it for two days whenever I fed and it really helped. I also tried to feed L in the foot ball hold a couple of times, was actually a pretty funny sight feeding a 12 months old like that,
The look on his face was priceless, ( like this is not how I normally get my milk)

I hope it heals quickly...