How do you know if your really allergic to Botox?

 You may have had an irritation or possible infection from the injection site. Please, see an expert. Best, Dr. Emer

Thank you for your inquiry. It is hard to figure out exactly what you reacted to and I strongly recommend that you go back and see your injecting doctor. Allergic reactions to Botox are rare but still possible. It's best to go back and talk to the doctor who injected and ask them about the next steps you should take. 
Best Regards, Dr. Bector

Hi some of these symptoms may indicate an allergic reaction, other allergy symptoms are itching, wheezing, asthma, a rash, red welts, dizziness and faintness. Tell your doctor immediately if you have any breathing issues or a faint or dizzy feeling. Don't get injections at a "Botox party" at somebody's house.