NEED HELP

Okay Mommies I been breastfeeding my 1 month old for 6 weeks now and I love it I breastfeed on demand so ever cue he wants to eat I’m sticking him to my breast and he loves it so do I but the last couple Days my nipples been really sore so I decided to look at them closely today and they have cracks in them and are really sore and open a little how do I heal them I still wanna feed I’m not ready to pump just yet but my nipple hurts .. I would like to ease pain a little .