Oh you poor thing
I know exactly your pain as this is why and when I stopped BFing my first son. I now regret it. I would say that lansinoh would be great, rubbing BM into your nipple and allowing it to air dry, and if you really feel it needs to heal without feeding, I'd suggest pumping for feeds from that side for day/ couple of days until you feel somewhat improved.
THINK before you decide to stop BFing for this reason - did you have a timeline in mind of when you might stop? Also remember, if you stop like this, you will be in a whole other world of pain with having stopped so suddenly (engorgement, possible/ probable rusk of mastitis, ...)
(((Gentle hugs)))