What is it??

[Barb Glare]

it sounds like an infection or dermatitis (are you prone to dermatitis?)
An all-purpose nipple creme on prescription should help if you can't find the exact cause

[Arcadia]

Are they itchy too?

I would second getting something like kenacomb which has antifungal, antibacterial and a little bit of cortisone (which will help with the soreness).

sore nipples suck!

[Tegam]

Are they itchy too?

I would second getting something like kenacomb which has antifungal, antibacterial and a little bit of cortisone (which will help with the soreness).

sore nipples suck!

Can I get this over the counter?