I had juvederm done yesterday and one side of face is fuller than the other. What can I do to make it even?

It's too soon , only 24 hours, to judge symmetry after Juvederm injection. Ideally you should wait at least two weeks for all the swelling to clear up. Even mild swelling can give the appearance of asymmetry. It's helpful to compare pre and post injection photos.  Rushing to have it removed or having additional injections before the swelling has subsided can potentially either take away a potentially great result or in the latter, create an symmetry. 

Thank you for the question. It is impossible to judge results from Juvederm injections at 1 day. Wait 2 weeks and if you still see asymmetry, then follow up with your doctor who can add a little more to even make your face more symmetrical. Good luck.

I always tell my patients to not love their filler
injections for 2 weeks. Swelling is very common and sometimes immediate. It can
last 3-7 days and a good idea is to use cold compresses. Cold compresses may be
used immediately after treatment to reduce swelling only if needed. This may be
applied for 3 minutes, 3 times per day, for up to 3 days. This is best done
with a bag of peas in a zip lock bag. Only apply light pressure to the area but
gentle massage might be necessary. Get Arnica gel if you can find some and
apply a few times a day as well to help treat any swelling. Avoid any blood
thinners. Bruising can also last 1-2 weeks. I don't recommend hyaluronidase
this early and wait a few weeks until the swelling has resolved. If it is
persistent or you are worried, set up a follow up appointment with your
dermatologist.