Thanks Manta Ray. I've tried many times to lance the white spot but it does not seem to be a bit of solid milk that can be removed, it seems like part of my nipple has gone white and so I can't get it out. I guess I might be going back to the doctor.

I did have some success last night. I fed my daughter off that side in the tub and as soon as she came off submerged my breast in warm water, and I didn't get the blanching and hours of aching afterwards.