Yolanda Foster's battle with Lyme disease takes center stage during a Season 6 episode of Bravo's "The Real Housewives of Beverly Hills." The former supermodel was diagnosed with the life-altering disease in 2012 and has seen a considerable decline in her condition since. During episode 2 of the hit reality show Yolanda, 51, opted to undergo an unconventional treatment in the hopes of feeling better. She allows some of her co-stars to get a glimpse into her struggle, but buzz about her recent treatment creates confusion for others.

As was suggested in the "RHOBH" Season 6 trailer, Yolanda's diagnosis is a major talking point this season. After attempting to tough it out at Lisa Rinna's birthday party during the season premiere the mother-of-three and her team of helpers look to new methods of treatment. After carefully analyzing her recent lab results Yolanda decides it may be in her best interest to remove the white gold caps she had put on her teeth at an earlier date. She fears the caps may be causing a rise in heavy metals in her blood. During the procedure her now-estranged husband David Foster is by her side until the very moment she wakes up, rooting her on and helping to make her feel more comfortable. 

After the procedure is complete Yolanda returns to the condo she's been staying at for several months. After taking the time to recover she invites Eileen Davidson and Lisa Rinna over for a visit. Shortly after arriving at the condo Yolanda's main assistant invites her co-stars to take a glimpse into the medicine closet which is filled from floor to ceiling with various different vitamins and medications. Both Eileen, 56, and Lisa, 52, are shocked, but don't mention it. Yolanda expresses to her "RHOBH" cast mates that she's "afraid to hope" which worries them.

Meanwhile Kyle Richards and Lisa Vanderpump jet to Europe for a little relaxation. The couples, as well as Kyle, 46, and husband Mauricio Umanski's children, stay in a historic villa in the countryside. Early in the trip Lisa V., 55, updates Kyle on Yolanda's condition. She reveals to her that Yolanda had the crowns taken out of her teeth, which both women seem very confused about. Later, during a luxe dinner on the rental property Lisa V. confronts Kyle about her decision to attend niece Nicki Hilton's wedding in London after the trip, which she was at one point uninvited to. She suggests that Kyle allows her sisters, Kathy Hilton and Kim Richards, to jerk her around and plays into both their hands. Lisa V. and her husband Ken Todd also express deep confusion over the fact that Kyle has decided to attend the wedding despite some of her children and her husband not being invited. 

Previews for upcoming episodes of the show suggest viewers will be introduced to "RHOBH" newcomer Erika Jayne next week. Be sure to tune in next Tuesday on Bravo.