Is it possible to have ptosis 8 days after botox (dysport), without any previous indication or symptoms prior?

It is certainly possible to have ptosis after 8 days.  I can take up to 2 weeks to achieve the maximum effect, but 8 days is plenty to start seeing something.  Pictures would be useful to help figure it out.  You should definitely go see your injector and have them take a look.  

Thank you for sharing your question and I am sorry to hear of your eyelid sagging. The neuromodulators can take a full two weeks to take effect so it is possible that the ptosis was related to your botox treatment.  Talk to your injector they can help by prescribing eyedrops that can help lift your lids temporarily.

It is  likely  that the ptosis you have is related to your injection of Botox. Botox and Dysport can cause ptosis, although rate with experienced injectors . The only thing that would concern me is the rash and the inflammation  you have around your eyes. This kind of reaction is very rare. I would consult an ophthalmologist to make sure that there is not another problem occurring around your eye.

Eight days is certainly within a reasonable time frame to see the development of lid ptosis.  A picture would be very helpful to differentiate if this is true lid ptosis, brow ptosis, or swelling.  True swelling would more likely be associated with rash or allergy where lid ptosis would be a lowering of the upper eye lid, and brow ptosis would be a lowering of the brow.  You should see a physician since some of these potential causes may be treated.  Best wishes.

Dr. Berdy

It takes about 5-7 days for botox to work completely.  If you haver an allergy to rash, tis might contribute to swelling but should not cause ptosis.