Hello lybrate-user. It usually occurs in neurolgical complaints in nerves supplying the facial muscles.
You should consult and take proper check up and treatment.
You can consult me at Lybrate for homoeopathic treatment.
It may result when a virus, usually the herpes virus, inflames the nerve. This is the same virus that causes cold sores and genital herpes. Other viruses that have been linked to Bell's palsy include: chickenpox and shingles virus.
With or without treatment, most individuals begin to get better within 2 weeks after the initial onset of symptoms and most recover completely, returning to normal function within 3 to 6 months. For some, however, the symptoms may last longer.