Icing after filler is most effective the first 24-48hrs after injection. I doubt that at this point icing will improve swelling. Next time I would recommend taking arnica + bromelain to minimize swelling and bruising.
Swelling after Juvederm is expected. Depending on the areas injected, it may take 2-3 weeks to resolve. We routinely recommend arnica & bromelain after filler injections to minimize swelling & expedite the resolution of any bruising, which can occur up to several days after the filler injections. I doubt the usefullness of ice at this point in time.
At two days after injection of juvederm, icing probably will not help. Usually the swelling goes down within a few days.
Swelling and bruising are common side effects of injections and can last up to approx. 2 weeks. Typically there is no need for massage. Contact your injector if you have any further questions regarding massage. Cold compresses for 10 mins several times a day is beneficial to reduce swelling.