RHOBH's Erika Girardi performs at Pervert Night...then lies to Lisa Rinna over who told Yolanda Foster about her children not having Lyme disease

Lisa Rinna might have bitten off more than she can chew with showgirl Erika Girardi.

The 52-year-old former soap opera star tried to confront Erika on Tuesday's episode of The Real Housewives Of Beverly Hills for supposedly throwing Lisa Vanderpump under the bus with Yolanda Foster.

Erika had heard Lisa gossiping about the possibility that Yolanda's children might not have Lyme disease and told her friend what had been said.

Gossip girl: Erika Girardi was confronted by Lisa Rinna over health rumours involving Yolanda Foster's children on Tuesday's episode of The Real Housewives Of Beverly Hills

This caused the other women to launch a witch hunt to determine who'd snitched.

Lisa Rinna was incensed because Lisa Vanderpump had blamed her for the blabbing.

So Rinna chose to confront her new nemesis right after Erika had danced for Pervert Night at a bumping gay club in San Diego.

Witch hunt: Lisa Rinna launched a witch hunt to find out who told Yolanda that Lisa Vanderpump claimed her children did not have Lyme disease

Erika was irritated by the conversation.

'Why don't we just support her [Yolanda] and move on,' yelled the performer, who describes her alter ego as 'class and ass and over the top fabulous'

'Stop owning it Lisa Rinna, who cares,' shouted the 44-year-old peroxide blonde.

Candid conversation: Eileen Davidson opened up the topic for conversation

Interested parties: Lisa Vanderpump and Kyle Richards listened along with Erika as Lisa Rinna explained the situation

'Erika's a p***y, there isn't anybody else that could have said it…so own it,' Lisa griped to the cameras later.

'I feel like Erika has sat and lied to all of us and so now I'm like ''now what?''' she grumbled.

The other women were also suspicious.

Not happy: Lisa Rinna was flat out lied to by Erika

'Seems strange to me that she's trying so hard to shut it down,' mused Lisa Vanderpump slyly.

Erika later told the camera that she '100 percent' told Yolanda about Vanderpump's gossip, but lied because it wasn't the right time to talk about it.

Kyle Richards and the two Lisas after their night of partying then smashed a trolley of condiments into a wall of their hotel. They then ran away giggling, without clearing up the broken crockery, or even alerting housekeeping.

'You can't take them anywhere,' sniggered Lisa Rinna.

Made a mess: Kyle and Vanderpump made a mess of a trolley of condiments

The show opened with Yolanda meeting up with Lisa Vanderpump and Kyle at a cryotherapy clinic to be 'frozen'.

'I don't really understand freezing myself in a chamber every day but she looks great, so if it works for her I'm going to do it,' said Lisa, 55.

The chambers were -140 Celsius, and the women had to stay inside for almost two minutes.

Freezing cold: Vanderpump went to a cryotherapy clinic in support of Yolanda

'Yolanda is trying to torture me,' yelled Lisa, who said the best part of the procedure was 'seeing Yolanda laughing'.

Over lunch Yolanda, a former model, confronted the women, to ask if they'd stood up for her when Lisa Rinna accused her of having Munchausen syndrome.

'You are supposed to be my homies,' said Yolanda, as the other women appeared sheepish.

Her homies: Yolanda scolded Vanderpump and Kyle for not defending her when Lisa Rinna brought up Munchausen syndrome

On hearing Lisa Vanderpump's gossip that her children might not have Lyme disease, Yolanda offered their medical files and told her to 'read them' and 'educate' herself.

She also demanded that Lisa apologise to her children Bella and Anwar Hadid, who also suffer with Lyme disease.

'Mohamed told me that they were fine and that's what I thought,' said Lisa, referring to Mohamed Hadid, Yolanda's first husband.

Awkward silence: Vanderpump and Kyle were put on the defensive by Yolanda

'He probably didn't want to discuss it with you,' said Yolanda, 52, who was clearly devastated by the cruel accusations.

'It would break my heart for Bella and Anwar to hear that you put any doubt out there that they are ill or not,' said Yolanda tearfully.

In a confessional later she appeared extremely upset at the betrayal.

Medical files: Yolanda brought her children's medical files and handed them to Vanderpump as proof of their illness while demanding Vanderpump apologize to them

'They are talking about my children, if they had any questions they should have come to me, why talk about it behind my back?' she sighed.

Lisa Vanderpump was furious that Lisa Rinna had 'stirred up' tension between her and Yolanda.

But when Vanderpump later confronted Lisa, she denied it and blamed it on Erika.

Guessing game: Lisa Rinna denied telling Yolanda that Vanderpump was gossiping about her children's health

Meanwhile, Erika was prepping for her saucy stage show in San Diego – which involved a tour bus full of helpers, body make-up and a truckload of designer clothes, shoes and bejeweled accessories.

The raunchy performer decided to wear a necklace of the word 'c***y' – to shock the other women.

'They all have a meltdown when I say the word c***y,' she giggled with her creative director Mikey.

Explicit necklace: Erika knew that Kathryn Edwards hated the C-word so she wore a necklace with it

Lisa Rinna wasn't sure what to expect from Erika's alter ego 'Erika Jayne'

'I think we're going to see a full blown orgy,' she giggled.

Backstage the women marveled at the male dancers.

Getting ready: Yolanda called Erika while she was getting ready for her San Diego show

Party time: Erika Jayne performed at a gay club in San Diego

Good times: The ladies danced around as Erika performed

'I see nothing but these round perfect butts, I mean flawless,' cooed Kathryn Edwards, as Lisa Vanderpump and Kyle slapped some of the dancers' posteriors.

'I can see why the gays love her, right?' said Lisa Rinna, who admitted to being 'prudish'.

'Erika Jayne did not disappoint,' agreed Kyle, 47, who is Paris Hilton's aunt.

Dance moves: Kyle busted out some of her dance moves while Erika was on the stage

Just as Erika was thinking the ladies might have lost their 'conservative little shells' they began complaining about her 'c***y' necklace.

'I'm not in Beverly Hills, I'm on my turf,' scolded Erika, who wasn't willing to apologise.

Earlier soap actress Eileen Davidson had met with newbie Kathryn Edwards for a frosty and passive aggressive lunch.

Small world: Eileen and Kathryn had an awkward lunch

Eileen said she used to date Kathryn's ex husband Marcus Allen in '1988 or 1989'

'That's interesting, because I was dating him in 1988,' said Kathryn as they dissolved into awkward laughter.

Kathryn, 51, was appalled by Eileen's bag.

'I don't like your bag,' she announced rudely.

Bag lady: Kathryn bluntly told Eileen that she didn't like her bag

'Now I'm going to feel bag pressure,' said Eileen as Kathryn insisted that she spend $10,000 on 'three bags'.

'Maybe two,' corrected the former model who is now married to former UCLA and NFL star football player Donnie Edwards.

Next week the drama continues on Bravo.

Bag pressure: Eileen joked that she was going to feel 'bag pressure' over her purse collection