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What do some viral skin rashes look like?

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Quick Answer

Herpes zoster causes chickenpox, a red, crusty rash on the chest and back that usually spreads to the face, head and extremities. Herpes zoster also causes shingles, a viral infection that produces a band of red, oozing blisters, usually on one side of the body, explains eMedicineHealth.

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Full Answer

Caused by the herpes simplex virus, cold sores consist of fluid-filled blisters or sores on or around the mouth, according to eMedicineHealth. Fifth disease, a viral illness caused by parvovirus B19, results in a red facial rash called the "slapped cheek rash." The rash sometimes spreads to the extremities, buttocks, chest and back.

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