How to balance my PH level??

So my fiance told me (I had to force it out of him) that I smell down there sometimes, he only notices during sex if we're doin doggy, or if he's goin down on me...I bought that summer's <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> night time wash but it burns me. I found that soaking in a tub of hot water with 2 cups of apple cider vinegar helps, but I don't have the time to do that very often...also I get itchy down there sometimes && my skin looks dry and cracks at the top if that makes sense...sorry this is so long...I hope someone can help me!!!!! Thanks in advance