Genital herpes vs jock itch, what is the difference?

Herpes Simplex II: Consists of a cluster of lesions that look like blisters. The lesions can appear on the penis, anus, labia or cervix ; they can spread, coalesce followed by crusting over. Jock itch often appears as reddened skin extending from the groin crease to the upper thighs. It may scale ; the outer edge could have small blisters. It can burn ; itch.