Primary herpes: Note the multiple tender submandibular, submental and anterior cervical lymph nodes.

Primary herpes: Multiple ulcers on the lips, commissures, and gingiva.

Primary herpes: Multiple ulcers on the labial mucosa, commissures and gingiva.

Primary herpes: Note the enlarged erythematous gingiva.

Primary herpes: Multiple ulcers on the dorsum of the tongue and commissures.

Herpes simplex: Microscopic image of epithelial cells showing epithelial necrosis and cells with giant and/or multiple nuclei..

Recurrent herpes: A cluster of intact vesicles on the right vermilion zone and skin..

Primary herpes: Ulcers on the left mandibular gingiva and buccal mucosa.

Primary herpes: Multiple ulcers on the dorsum of the tongue.

Primary herpes: Multiple ulcers on the dorsum of the tongue.

Primary herpes: Gingival erythema and multiple ulcers of the gingiva, tongue and labial mucosa.

Primary herpes: Multiple ulcers on the lower labial mucosa.

Primary herpes: An ulcer on the perioral skin.

Herpes simplex: Microscopic image of epithelium showing epithelial necrosis and cells with giant and/or multiple nuclei.

Herpetic whitlow: Early primary herpes infection of the fingertip. A vesicle is surrounded by a zone of erythema.

Herpetic whitlow: 3rd day of lesion.

Herpetic whitlow: Vesicle is larger.

Herpetic whitlow: Vesicle has ruptured and "satellite" lesions are evident proximal to the main lesion.

Herpetic whitlow: 2 weeks after lesion onset. The larger ulcers are crusted.

Recurrent herpes: A cluster of small ulcers is present on the right hard palate and gingiva.