Question

A patients suffering from painful vesicular eruption at t-4 dermatome, the cause is:

Answer 1

Herpes zoster, caused by varicella zoster virus, most commonly presents as a unilateral dermatomal, vesicular eruption. ... Typically, the rash involves a single dermatome and does not cross the midline. The presence of the characteristic rash (Figure 1) is sufficient to allow for clinical diagnosis.