Can't figure out this discharge

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I've had rashes, itching, and burning on and off since January. tested positive for hsv1 but was told it was not the cause of my symptoms. i no longer have rashes, itching, or burning since I stopped using scented soaps down there. but now I've had this thick discharge for a couple weeks that started with a bit of a musty odor but now only smells real bad if i don't wear underwear. I have no idea what it could be and I can't afford to go to back to the doctor since I've been so many times already and they've told me that they don't know what it is. I just wanted to see if anyone could help

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I’ve also taken medicine for yeast infections and hsv1 earlier in the year to no avail. nothing has helped