Botox: Too much? Or am I sensitive?

I am sorry to hear about your experience.  It is hard to know exactly the cause without knowing the dose used and seeing photos, but it does sound as if you have had too much Botox in the forehead area.  Sometimes this is a "sensitivity" to a dose used, or more likely you just got too much at once. With the first treatment you may in fact be more sensitive to the sensation of heaviness, but if you truly can't raise your brow the dose was too high for you. Unfortunately Botox isn't really reversible and must wear off on its own; the good news is that it does wear off and usually the degree of heaviness you are experiencing lets up more quickly as the effect diminishes and rather than the full 3-4 months may only take 4-6 weeks to get better.  I usually try to use as small a dose as I think will create the result a patient desires, as you can always add more if needed. Any experienced doctor should be happy to offer an explanation when asked; seek the opinion of an expert for any future treatments.

Some patients will report a "heaviness" to the brow which resolves within a few weeks.  However the dropped brow suggests that too much may have been injected.  The product will wear off gradually over the next three months, so you should see slow but stable improvement in your symptoms.