So what is Bell’s palsy? How do you get it? How long does it take to resolve? These are some of the questions people asked me and I asked myself as well! And…well…here is what I have learned so far. Bell’s is a sudden paralysis and weakness of one side of your face causing it to droop caused by trauma, a possible viral infection, or stress typically by the seventh cranial nerve but 100% of the reason is not known.