tmi question

So about a 2 months ago now I used at female vagina soap (off brand of summers eve). It threw off my ph balance and I got a yeast infection ew.

To add to that my roommate buys toilet paper well she is getting really soft tp and it like crumbles and stays down there I can't get it to stop!

No matter what I have done my vagina won't stop itching. It doesn't itch 24/7 but mainly when im sitting or laying down. I have one partner and he is clean of STD and so am I. I don't understand why is it still so itchy.