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?

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.

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.

Hi There! an allergy to botox/dysport is pretty rare, but very possible. there are multiple things to take into account. it sounds like your reaction was pretty severe, so i recommend be super careful and certainly consulting with your physician.
botox and dysport are both made with certain proteins that serve as "carriers" for the product. if you have an allergy to cows milk protein, then you should not be treated with these. Xeomin does not have carrier proteins, so this MIGHT be an option for you.
You may have had an allergy to the saline used to reconstitute the botox/dysport. If preserved saline (which has bacteriostatic agent benzyl alcohol in it), was used, you may have had an allergy to the preservative.
again, i would be incredibly careful before pursuing more treatment, as your reaction was severe. it would help to know exactly what was used (what kind of saline, which product, and if a topical numbing cream was used, which one).
good luck!!