Talk to Gynecologist on Sore Nipples

Is there a lactation specialist here? Or anyone relevant? I am a breastfeeding mother of 8 months old. It's been two weeks since I've developed cuts on my nipples due to reasons unknown to me. The latch is not the problem since I've shown it to a doctor. I am applying bepanthen and polyfax ointment, my feed, and honey. Panadol for pain. The doctor also advised using a breast shield but my baby completely rejected it. The cuts only get better when I take a break from breastfeeding but as soon as I start again, they return. They are bleeding quite a lot and the pain is unimaginable. I need to ask 1. How do I get them to heal fast? 2. How long can I take a break from breastfeeding before my supply dries and I cannot continue feeding my baby in the future? I badly want to feed him for 2 years. 3. Why are these cuts happening? I have an elder son too and this didn't happen with him.

I am desperate for help ?