Well if it's a yeast infection... Keep your genitals very dry cause moisture can make it worse, try to lower your sugar consume and douche with a mix of vinegar and water... Just wash that area with that mix and dry with a towel after! I'm in no way a doctor but I had a yeast infection once and those tips helped me a lot..
Good luck and you should go to the doctor.
It has all the initial symptomes
How do you know for sure is a yeast infection?