Want a slimmer neck result

First treatment of Kybella....
The needle poking isn't an issue (not much of a pain) because it only take around 5-10mins

But the afterward effect was super pain(scale from 1-10) I would say 9 and the irritation was very uncomfortable. Also I am feeling so much heavy head.

Next time when I go again I would take some pain medication for sure and see how it goes hopefully better than this time.