You can sell it for big round zero, I am afraid. Apart of it's probable trademark, it's just a wrong name on all levels.
Botox - is a part of facelifting, a plastic surgery, basically. But not a lot of people know about it. Even fewer people know if they need specifically botox. You don't know about it until you are a plastic surgeon or any related specialist.
You just think about it when you buy the name. If you believe you need any sort of ''face improvement'' you go to PlasticSurgery ot FaceLifting or CosmeticSurgery etc. You don't go to ''BotoxServices''
It's like using a name ''minustwodioptricglasses''.com, it's totally useless.