Nipple blister maybe...

Kati

I have a white line on my nipple and it’s a constant stinging pain and really hurts to breastfeed on that side. Idk if it’s a blister or what because it doesn’t look like a bubble, it’s not raised and the area around it isn’t inflamed or anything. Any remedies to get rid of it, or what it is? Sorry I’m not going to take a picture of it lol.