Yolanda Foster had a rough season on The Real Housewives of Beverly Hills, but that's not stopping her from continuing to spread awareness for Lyme disease.

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Despite the doubts about her illness, which became a leading story line on the show, Foster claims she's focused on helping others and finding a cure.

"When I first got diagnosed with chronic Lyme disease and learned about the stigma around it, I chose to share and bring awareness to this ignored disease whose surrounding controversy feels like such an unfair and shameful affair," Foster wrote in her Bravo TV blog last week. "It has been a humbling experience to learn that most people don't understand invisible disease, because they can't actually see sickness on one's skin. The fact that a poppy seed-size tick can bring such devastation to one's life is insane--the fact that we can't get the treatment we deserve is even more unbelievable."

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"I feel such deep compassion and speak with conviction for all of those affected, and my spirit is unbreakable, but I also have to learn not to let this get the best of me, because sometimes it just does," Foster explained. "Once again, hearing stories from patients also seeking a cure, who show me their gratitude for the voice I am for them --a profound experience--and a day at the doctor's office reminds me of why I'm doing this.

For more of Yolanda Foster, tune into The Real Housewives of Beverly Hills season six, airing on Tuesdays at 9 p.m. on Bravo.

Tags: lyme disease yolanda foster Bravo Reality TV The Real Housewives of Beverly Hills