pigmentation?

Hyper pigmentation on armpits & lady parts?

I have noticed white splotches on my underarms & front of my lady part ((outside)) 
 I have eczema, so that could be why there is splotches of white - but, I also tend to pluck the hair from my armpit with a tweezer ((gross, i know.))
 so that could also be why?? 
 I'm embarrassed & cannot wear anything that shows my armpits out of the house in fear of being ridiculed.  
Does anybody have any [preferably natural] remedies? 
— please don't say stop picking at the hair as I have tried many times but cannot get over the stupid obsession. It is also lowering my self esteem severely.
 My self esteem is already bad enough - this is only making it worse. all answers are appreciated greatly.