This may not be a ‘natural’ remedy, but it might provide you some relief. Diaper cream has worked for me. I become raw under my breasts and extra skin in the stomach area from yeast growth. Though the diaper cream can be a bit messy, it quickly takes the burn and itch out andstarts the healing up process much quicker.
I get yeast infection under my breasts & the fat overhang on my abdomen. Keep those areas clean & dry! I use a hair dryer on low/cool briefly before using a medicated powder like Gold Bond every day. Some use cream/lotion but my dermatologist says powder keeps area dryer.