I had it for about a month a few years ago. Not so bad that I drooled but bad enough that I had to tape my eye shut at night to sleep
I ate a high protein diet to recover: the facial nerves regenerate at the rate of about a millimeter a day, so whatever I could do to speed it up, I figured that might help, heh! Also my doc prescribed an antibiotic, an antiviral and a steroid (for the swelling of tissues). I got plenty of rest, and did not work any overtime at all after speaking with my boss about the diagnosis and how it was stress-induced.
Rest up, eat healthy and take your meds & vitamins, and I hope you heal up quickly!
ETA: Other good things to take to help heal nerves include: St. John's Wort (note: reduces birth control effectiveness/use backup method while taking), Vitamin C up to 5,000mg/daily, Evening Primrose Oil 4,000mg/daily, B-Complex Vitamins 150mg with extra B6 500mg/daily.
Other healing tips: Avoid alcohol, and focus on relaxation through meditation/massage/etc.