You are describing the tyndall effect from injecting the filler to superficial. You may wait till the filler dissolves over 4-9 months. I often see patient that come to me after been treated else and would like this problem corrected at the time of consultation. Those patients I offer the use of...
It is extremely unlikely that your asymmetrical smile and drooping cheek are secondary to the Juvederm injections. I suggest you talk to you physician and consider a consultation with an ENT specialist to rule out the possibility of a Bell's Palsy, which is a temporary weakness of the facial...
Swelling at the injection site can happen but I have never heard of the entire face swelling. It sounds as if you are having some reaction - perhaps to juvederm and perhaps to something unrelated. You should return to your doctor and consult them right away.