Yolanda Foster continues to fight back against symptoms of Lyme disease.

Yolanda Foster's 'RHOBH' Co-Stars Question Her Lyme Disease Diagnosis [Report]

Although the Real Housewives of Beverly Hills star saw an improvement in her condition after a doctor removed her leaky breast implants, Foster's Lyme diesase battle is far from over, and on Wednesday, she offered fans an update on Instagram.

"I dare to share while Uncovering the mystery of Chronic Lyme Disease........... #OneDayAtATime," Foster captioned her latest photo. "#HouseWifeOnAMission #SearchingForACure #LymeDiseaseAwareness #FightingForALymeFreeWorld."

Yolanda Foster Is Determined To Find A Cure For Lyme Disease, Claims Husband David

A photo posted by YOLANDA (@yolandahfoster) on Sep 23, 2015 at 11:27am PDT

Foster was diagnosed with Lyme disease in 2012, around the time she signed a contract with Bravo to appear as a full-time cast member on The Real Housewives of Beverly Hills' third season. Then, two years later, while filming season five, Foster suffered a relapse, which left her unable to read, write and watch television.

Despite her hardships, and the ongoing speculation into her illness, Foster's husband, David, recently claimed she was determined to find a cure.

"Yolanda feels that it's part of her job to get to the bottom of this. She believes that if she cracks the code it will help a lot of other people with the disease," David told UK's Daily Mail last month. "I've told her more than once, I've said, 'You know, honey, you should really try and get better yourself first,' and she said, 'Yeah, but if I crack the code then a lot of people are going to get better.'"

For more Yolanda Foster, tune into The Real Housewives of Beverly Hills when the series returns to Bravo later this year.

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Yolanda foster, Lyme disease, The Real Housewives of Beverly Hills, Bravo, Reality TV