Severe lip swelling after restylane and I'm back to work Tuesday. Please help! What can I do to minimise the swelling? (Photo)

Thank you for your question. It is very common for the lips to look
over corrected or fake the next day. This is due to all the swelling
that ensues. I often tell my patients that this
is the "oh my gosh" day. It can be 'oh my gosh' my lips are so
swollen! It could also be 'oh my gosh' I love my lips even more than
yesterday. Either way, the swelling may last a few days with every day
showing a decrease
in swelling. The more you ice the first day or two, the less swelling
you will have. I would wait a few days to a week and then return to
your injector if you still have concerns after that. If you like the
look of the lips at some point during the swelling reduction, then take a
picture. This way you know what volume you like in the lips for the
future.

Taking arnica and doing cold compresses will a help but swelling usually lasts a few days, up to two weeks 

This is a significant amount of swelling and probably more than you anticipated, but it will improve very quickly. You should apply cold compresses for 10 minutes at least three times a day, and drink cold beverages. The prednisolone is a prescription medication with potentially serious side effects and it sounds as though it was given to you for a different problem.  You should discuss this with your physician before taking any more.Swelling is not a given after filler injections and injecting smaller amounts and adding more later if needed can prevent most of it.  It also helps a little to start the icing treatments immediately arter the injections.Try to have a good weekend knowing this will get better very quickly.