Bell’s palsy is a disease of the seventh cranial nerve (facial nerve) that produces unilateral or bilateral facial weakness or paralysis.Most patients recover completely, and Bell’s palsy rarely recurs. Bell’s palsy subsides spontaneously with complete recover in 1 to 8 weeks.Bell’s Palsy surgery is carried out in only the most severe cases of Bell’s Palsy.Surgery carried out in the early stages is known as decompression surgery Bell’s palsy is a sudden paralysis or weakness on one side of the face due to malfunction of the seventh cranial (facial) nerve. Bell's palsy may represent a type of pressure paralysis in which ischemic necrosis of the facial nerve causes a distortion of the face, increased lacrimation (tearing), and painful sensations in the face, behind the ear, and in the eye.