Eyebrows have changed shape and dropped very low after receiving botox 12 days ago. Is there anything that can be done to fix?

Although Botox is not reversible, injections into the lateral brow (often in combination with treatment of the crow's feet, or lateral small lines), can elevate the brow to some degree.  This is something to consider.  Please seek re-evaluation with your treating physician to discuss your concerns and seek correction, if possible.  
Best of luck!

Botox locks the release of a chemical called acetylcholine, which triggers the muscle contractions that create wrinkles. Botox essentially paralyzes the muscles and stops them from contracting. Results from these treatments are visible within 3-14 days with results that can last anywhere from 3-4 months. Unfortunately, Botox cannot be reversed. Follow up with your injector at 2 weeks to discuss any questions or concerns that you may have. Hope this helps.