Can Dysport Result in Permanent Damage to Orbital Septum?

In addition to what has already been proposed, one common problem following the injection of botulinum toxin can be the formation of festoons or fluid pockets underneath the eyelid. The normal muscle tension of the orbicularis muscle may hide this tendency under normal circumstances. However with the loss of tone, any skin or muscle laxity is likely to reveal itself and may result in the formation of festoons. On a positive note, your condition should self-resolve as the toxin wears off. Best wishes

Dysport will not cause any herniation in your fat pad.  You should find that your dysport is functional for about 16 to 20 weeks in general.  At this point, I believe you have no further action of the injected dysport and likely need a consultation with a board certified physician.  Although off label, I have had tremendous success injecting around the periorbit and have been doing so for years.