Will undereyes return to normal when dysport wears off? I hate it! (photos)

There should not be any permanent side effects from dysport injections.  I am sorry to learn that you're disappointed with your outcome.  It is situations such as yours which must be kept in mind when considering the possible use of long acting botulinum toxins which will likely be on the market sometime within the next couple of years.

Normally, the appearance will return back to normal after Dysport wears off.  The time it takes to wear off can vary, but it is usually a few months.  

The good news is, Dysport lasts only 3-4 months.  A lot of times, the undesired results of your injections will resolve quicker than expected.  You should not have any permanent results.  Hope this helps.  

In cases like this I'm happy when Dysport results only last a few months. With all current neuromodulators on the market, results last 3-4 months so there is nothing permanent. You eyes will return to baseline in a few 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."