Hi, Eli - and welcome.
I'm sorry to learn of your post-op loss of facial mobility but as others have noted and you seem to realize, this is not a terribly uncommon occurrence. Steroids often help. I didn't experience this problem so I don't have any specific advice but there are a variety of helpful facial 'exercises' available and of course, time is the best healer. However, regaining facial mobility always seems to proceed at a glacial pace. That being the case, I have to echo Kay's (Kaybo) astute advice to try and be patient. Many of the folks who post in these forums had this issue to deal with post-op and I'm sure they'll be able to offer you relevant suggestions on coping. As Erin (epic1970) posted, if you had normal facial mobility before the surgery, the facial paralysis should be temporary and resolve within a few weeks, but there is no absolute guarantee or exact time-frame. I wish there was!
Please feel free to ask any question you may have and to use the forums as a resource as you continue your recovery. Our members are knowledgeable, compassionate, empathetic and eager to offer you whatever help they can. They also have a well-honed sense of humor, which can be a valuable tool in dealing with ANs and the surgical recovery process.
Merry Christmas!
Jim