Like Botox Cosmetic, Dysport is an injectable form of botulinum toxin Type AThe most common side effects of Botox or Dysport treatments are nose and throat irritation, headache, injection site pain, injection site skin reaction, upper respiratory tract infection, eyelid swelling, eyelid drooping, sinus inflammation, and nausea. If you have a milk allergy, a test injection may be necessary.
Botox and Dysport are both neuromodulators. The difference between them is pretty minute and has to do with the proteins in them. If you have an allergy to milk protein then you can have an issue with Dysport, but not a general milk or lactose intolerance. The number of people with an actual allergy to milk protein is very, very, very low. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."