Thank you for your question .Yes it is possible. The risk is very minimal. In my practice so far I did not see anybody being allergic to Botox .
An allergy to Botox, though possible, is extremely rare. When it does occur, the allergy would be either to the benzyl alcohol preservative in the saline used to reconstitute the Botox or to the albumin in the Botox preparation itself. I have injected thousands of patients with Botox and have yet to see an allergy.
