Help ! Juvederm mixed with Silicone Fillers?

This is tough to answer without pictures and needs an in-person evaluation. It's possible it may go down some. Injections with 5FU/triamcinolone may also help. I recommend getting a formal evaluation with a lip augmentation expert. Best, Dr. Emer 

Many physicians stay away from permanent fillers like silicone because of the potential for late complications. Silicone, unlike many other things, is forever. This means that as the face changes the product remains the same. It also means that there can be late (sometimes decades later) complications.  Treating them involves a variety of regimens (detailed in my book of cosmetic complications) but injections with dilute Kenalog or a trial of oral anti inflammatory medications may help.

Eventually, silicone will give you problems. It is extremely controversial at meetings but there are numerous stories of it doing well for 5-10 or even 20 years and then problems develop. Correction of the complications is very difficult. I wouldn't do any more silicone. It's impossible to advise on your current problem without seeing you. 

Not a good idea to mix a non HA filler with a HA filler such as Juvederm. Ideally at this time frame you should be on a combination of anti-inflammatory meds and antihistamines, if it does not settle in another week, you should discuss with your injector the use of Hylase to dissolve the HA filler. Then look at methods to remove the silicone. Not an easy job. I wish you well. Dr Davin S. Lim. Brisbane. Australia.