I think I had an allergic reaction to Botox/Dysport. I want to try it again. Is there a test to see if I'm allergic?

You can request a patch test where a small amount of Botox is injected into the arm. Then you will be monitored for allergic reaction. This should help identify if it is recommended for you to proceed with further Botox treatments.

Thanks for your question.
Allergies to Botox / Dysport and the like are very rare, and while these are both used to treat migraines, they can also trigger temporary headaches / migraines due to muscle spasm from the needle (not the product) and / or the preservatives in the product. Migraines can and frequently manifest as dizziness. I do not know of any test to tell you whether you are "allergic" to the toxin because the product in and of itself, a toxin.
Best of luck!

Thank you for sharing your question. I would try obtaining your medial records to see what was used at your initial treatment, and then pursue a “patch” test with a product. Most likely the original treatment did not cause your symptoms, but best to be careful. Hope this helps.