Nipples on Fire


Does anyone have any tips on how to soothe or avoid having sore breasts/nipples? I only have pain on my left boob. It hurts so much when he latches on and also when the milk comes down. They are no engorgement pain and it can’t be he’s latching I’m wrong because my right boob has no pain at all. Any idea what it could be? Or what could I do to help?