B02.21

Clinical Causes: Reactivation of the varicella-zoster virus, which causes shingles Inflammation and swelling of the geniculate ganglion following herpes zoster infection Immune response triggered by the viral reactivation leading to nerve damage Potential predisposition in older adults or immunocompromised individuals

Key Symptoms: Facial paralysis or weakness on one side (similar to Bell's palsy) Severe pain or burning sensation in the ear or face Facial tenderness or sensitivity Altered taste sensation on the anterior two-thirds of the tongue Hearing loss or tinnitus Dizziness or balance disturbances Persistent facial pain after the rash has healed

Diagnosis Path: Diagnosis typically involves a clinical examination focusing on neurological function and patient history, especially recent shingles episodes. Healthcare providers may employ imaging studies such as MRI scans to rule out other causes of facial paralysis. Electromyography (EMG) can assess nerve functionality, while laboratory tests might confirm recent herpes zoster infection through PCR or antibody detection. Accurate diagnosis is essential to distinguish this condition from other facial nerve disorders and to guide appropriate management.

Treatment Protocols: Management often includes medications aimed at reducing nerve inflammation and controlling pain. These may comprise antiviral drugs, corticosteroids, and pain relievers. Physical therapy might be recommended to improve facial muscle strength and prevent contractures. Early intervention is crucial to minimize complications such as persistent facial paralysis or chronic pain. Monitoring and supportive care are important components of treatment, tailored to individual patient needs.