First off, thank you for the pictures.The short answer to your question is NO -- your brows should return to their injection state once the Botox wears off completely, typically after 3-4 months.That being said, your question warrants discussion of this important complication of Botox...
Yes, we use propantheline bromide quite a bit in our sweat clinic (see sweatfree.com.au for dosing). It works well for a short acting drug, especially for hands and feet (feet especially). You should consider BOTOX or even miraDry for your underarms, as they are more reproducible in the outcomes...
