Dysport affected my smile and made me look older. Is it permanent? (Photo)

I'm sorry to hear that your masseter injection has affected your smile. This will eventually wear off. Chances are some of the Dysport did not go into the masseter but also affected the smile muscles that pulls the corner of your lip outwards.

Injection of neuromodulators such as Botox, Dysport, or Xeomin into the masseter muscle for jaw reduction is an advanced technique that requires detailed knowledge of facial anatomy in order to minimize risks and complications. One of the major risks is affecting muscles other than the masseter due to incorrect placement of injection. There is no way to reverse this effect, but the neuromodulator will wear off in time. In fact, 20 units of Dysport is not a large amount in that location so you may note improvement even in 2-3 months. After the effects of the Dysport have worn off, it is worthwhile to see a Board Certified Dermatologist with specialty training and knowledge in advanced cosmetic techniques in order to see if you require more masseter treatment or perhaps fillers to address your cheeks and nasolabial folds. Very sorry to hear of your experience, but at least it’s temporary. Good luck!

I'm sorry you were unhappy with your Dysport treatment.  The effects of Dysport will gradually decrease over the next 3-4 months.  You can expect that your look will return to your "pretreatment" appearance.