The rash usually involves a narrow area from the spine to the front of the belly area or chest. However, the rash can appear on the face, eyes, mouth or ears. The blisters break and form ulcers, which dry and form crusts. The crusts fall off in two or three weeks.

When herpes zoster involves the eyes, it can cause a wide range of eye problems, each of which has its own set of symptoms. These diseases include:

Image Reproduced, with permission, from Sutphin JE, Basic and Clinical Science
Course Section 8: External Disease and Cornea, American Academy of
Ophthalmology, 2006-2007.

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