Very asymmetrical swelling night of Restylane injections? (photos)

Thank you for your question. It is common to have some asymmetrical swelling after lip augmentation with hyaluronic acid fillers which can take up to 2 weeks to resolve. You can help reduce swelling by applying cold compresses to the lips. As HA fillers are not permanent you can have them dissolved with hyaluronidase if unhappy with the results. If you have any other concerns please follow up with your injector. Best of Luck!

It is not abnormal to have swelling after a filler injection treatment, especially as the day progresses.  If it was not asymmetric right after treatment, then this is likely just normal swelling after filler.  Sometimes a vessel may be hit on one side that causes greater swelling evident a day or two later.  This should all subside with time.  This is why I don't recommend a lip filler treatment before a major event.  Within a couple of weeks, it should all settle down.  If not, hyaluronidase can help take away any asymmetry.