Causes Of Bell's Palsy
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The exact reason Bell's palsy occurs isn't clear, but it is often related to having a viral infection. Viruses that have been linked to Bell's palsy include:
- Cold sores and genital herpes (herpes simplex).
- Chickenpox and shingles (herpes zoster).
- Infectious mononucleosis (Epstein-Barr).
- Cytomegalovirus infections.
- Respiratory illnesses (adenovirus).
- German measles (rubella).
- Mumps (mumps virus).
- Flu (influenza B).
- Hand-foot-and-mouth disease (coxsackievirus).