Question
What are the differences between Bell’s Palsy and Herpes Zoster Ophthalmicus?
Answer
Herpes Zoster Ophthalmicus is a common form of peripheral facial paralysis, second only to Bell’s Palsy in prevalence. The main symptoms include severe ear pain, ear pustules, and peripheral facial paralysis on the affected side, which may be accompanied by hearing and balance disorders. The disease is caused by the reactivation of the varicella-zoster virus, which is latent in the trigeminal ganglion, when the body’s immune function is weakened. In addition to invading the trigeminal ganglion, the virus may also affect the adjacent vestibulocochlear nerve. Changes in cellular immune function are related to the onset of the disease. Because the virus can reach the intracranial space, causing local encephalitis, cerebrospinal fluid often shows abnormalities. This disease is typically treated with steroids and neurotrophic agents.