The condition cripples the central nervous system and is starting to affect her motor skills.
"So my fine motor skills aren't, like, fine at this moment," Blair said on Instagram over the weekend. "So I just want to say I'm going to probably give a makeup tutorial never. But if I do then you know I'm really just trying to have fun."
That's our girl.
Selma's famous friends showed their love and support in the comments.
"What a ROCKSTAR you are," Kris Jenner wrote on the video. "I adore you… sending you tons of love today my girl."
What a beautiful woman.