Can you tell me what is bell's palsy? how long does it last and how is it treated?

Facial nerve droop: Bell's palsy is a paralysis of the facial nerve on 1 side of the face that will normally cause drooping of the side of the mouth. The facial nerve controls moement of the mouth, cheek and eyelid. The paralysis is noticeable. Sometimes it will resolve rapidly and easily or with steroid treatment. It can also sometimes be permanent.

Bell's palsy: Bell's palsy is an idiopathic unilateral weakness of the facial musculature. It typically resolves over weeks or months. It is often treated with oral steroidal and antiviral meds.