Irritated burning like feeling vagina

So I found out I have ureaplasma and mycoplasma hominis. yes I'm on treatment even though I don't think it will work. my gyno says the irritation doesn't seem like it's because of that and keeps giving me yeast infection cream. I tested negative for candida glabrata and candida albicans. what could this be? is it the ureaplasma and mycoplasma doing this. I can swear the lips look red also.

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