Yelena Frankel, MD

Botox cosmetic takes 3-6  months to wear off. This is why it's so important to know exactly what muscles to inject and what amounts of Botox to use in each area. Injecting a small amount of Botox into the muscles that pull the forehead down may help raise the eyebrows a little. These muscles are near the lateral eyebrows.

However, Botox takes several days to 2 weeks to work. If your trip is in a few days, the treatment will probably not work in time.