Light brown marks between breasts...?!

Light brown marks between breasts...?

Hello, I have these marks between my breast which first appeared while I was pregnant with my son 6yrs ago and after the birth it began to fade away but never entirely. No matter what I do, it won't go away. When the temp is hot/humid (in NYC) it usually gets darker (maybe because I'm hot?). The other day I noticed that sections of it were pealing, but its still there. Now, it's not just one small section and thats it, it's actually little bits here and there but all in that one area (between my breasts). What can this possibly be?

I'm sure I'm not pregnant (I heard woman get strange markings during pregnancy).

Thanks.

Everybody has a certain amount of yeast in their body. Your problem here could be yeast because I had similar problem but I have no kids and mine occured same place, peeled, itched intensely and then spread to little bits here and there. I also felt hot and the spots got darker. If it's yeast then you need a topical cream called Nystatin and Triamcinolone Acetonide, a 30gram tube which you need a dr to prescribe. You apply the cream twice daily to the affected area. Usually clears it right up. I would go to the dr and have them take a look. Nothing to worry about probably just yeast. And about Des's answer, where your spots happen to come back..go to the dr and maybe try the cream I suggest? My spots never came back.. the cream worked the first time around.