Herpes zoster ophthalmicus (HZO) is a results from the reactivation of varicella-zoster (VZV), which also causes chickenpox. This reactivation affects the ophthalmic branch of the trigeminal nerve, leading to a pa|nfu|, unilateral rash on the forehead and around the eye. Some Common symptoms include burning pa|n, headache, and a vesicular rash and If left untreated, HZO can lead to complications involving the eye such as conjunctivitis, keratitis, and uveitis, potentially resulting in vision los

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