Can you use Gentian Violet on your breasts while pregnant??

Kh

I still breastfeed my 15 month old and I am currently 5 months pregnant. I got nipple thrush like the freaking minute I got pregnant and I cannot get rid of it. Treated baby and me at the same time. Tried nystatin, apple cider vinegar, coconut oil, diaper balm, candida diet, going topless in the sun, probiotics. I am at my wits end and have heard good things about Gentian Violet, but not sure if it's safe during pregnancy.