Usher's lead herpes accuser just dropped her $20 million lawsuit against the singer. And all signs say that Usher paid the woman off.

Usher was sued by the woman, Laura Helm, for infecting the woman with the chronic disease

Here's how TMZ Is reporting it:

According to court docs, Laura filed to dismiss her suit earlier this week because she and Usher have "reached an amicable resolution." As to how much that resolution cost Usher -- neither side will say.

We reached out to attorneys for both sides, and they would only repeat that word ... "amicable." The dismissal was filed with prejudice ... meaning it can't be refiled, and that's typically done when there's been a financial settlement.

You'll recall, Helm sued the singer back in 2017 ... claiming he had exposed her to the virus when they had unprotected sex. She initially sued for $10 million, then upped it to $20 mil for emotional harm and punitive damages.

But Laura's case was damaged recently, when a former friend released a recording which purported to show that she and Usher always used protection when having s*x.

Laura, a New Orleans jazz musician, was secretly recorded telling a friend named Dennis Byron that she had no plans to sue Usher after finding out he allegedly has herpes.

Just days before she filed the lawsuit she reportedly said she wasn't worried about getting the virus as Usher had always worn protection, seemingly contradicting her claims in court documents.

Laura's attorney Lisa West fought back against the recording, claiming that Laura only changed her story because she thought Byron was trying to sell the story to the media.

West added that Helm: "didn't want to be exploited and, in her attempt to deter Byron from doing so, she told him (inaccurately) that she never had protected sex with Usher and that she did not have herpes."