Why Is The Vagina Smelling Very Bad And Itching Severely ?

My vagina has been smelling very bad for the past
Several weeks an odor of bad cheese or something fishy jus a realy bad
Odor and now recently its been itching like crazy
It feels very dry irrated and almost like chapped...
I tried washing it with a soap covered wet washcloth but it just made it sting rele bad !
To the point where i started crying because it stings so bad . When i try to pee it burns and feels almost like geting stung by a bee down there :( what is this and how do i fix it ??