Part of Eyebrow That Can Not Be Corrected Surgically?

I have eyelid ptosis in my Right Eyelid. I visited a well reputed ophthalmologist in this field who confirmed it and we scheduled the operation date. But the problem is that also my Righ EYEBROW droops from the INNER SIDE MOSTLY(Above the nose).. and I see a muscle always Contracting. The Doc said it can't be fixed surgically because there is a nerve that passes there.

He suggested that he TESTS the Muscle by a very small amount of botox to relax the Contracted Muscle and this way he can allow himself to operate elsewhere in the Brow. After 4 days MY INNER SIDE of the Right EYEBROW is SO DROOPY. 1- Is it true that this part of the eyebrow can not be operated? 2- What can i do to wear-off this botox? and if there is noway, how long will it take (consideing it's a very small amount) and will my brow return back to its previous position?? Thx