Sharp Pain After Botox on Forehead

What you experienced is very rare. The needle most likely hit a small sensory nerve. There is not need to worry. There is no long term effect. The nerve likely has a small bruise on it that will take a few days to heal. In the mean time, you may have some symptoms like you are describing until the swelling has resolved.

From your description a nerve was hit during injection and you have some residual stimulation to this area. It should resolve over the next few days and will not impact your results.

Thank you for your question! Although Botox can cause headaches this is generally considered a rare side effect. The exact cause of Botox headaches is not certain but it is believed that the most likely cause is from over contraction of certain muscles in the face. Botox can definitely cause headaches but in most cases they are mild and short acting. This side effect should resolve within the next few weeks. Best of luck!