How long does the horrible poison side effects of Dysport last?

I think that a full medical evaluation is in order.  I have never seen or heard of this constellation of symptoms in a patient.  Although there is a cause for these symptoms, the association with Dysport is highly unlikely.

You have some symptoms that you need a full work up by your family doctor and cardiologist and neurologist and ophthalmologist.

First, if you have a reaction you should make sure to report it to Medicis, the company that makes Dysport in the U.S. Second, you should see a doctor - actually probably several specialists - for a work-up and evaluation as soon as possible. These side effects are not the types that are described in Dysport paperwork, so I would advise you to see a doctor as soon as possible. That being said, Dysport is temporary and will be out of your system in 3-4 months. "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."