Clinical diagnosis, based on history and physical exam
Available laboratory studies (not required for diagnosis):
Viral culture (gold standard)
Direct immunofluorescence
Tzanck smear (poor specificity)
Viral culture (gold standard)
Direct immunofluorescence
Tzanck smear (poor specificity)
Herpes labialis
Eczema herpeticum
Tinea cruris
Herpes gingivostomatitis
Tinea versicolor
Herpes keratitis
Tinea capitis
Herpes labialis 