barber's itch

1. Inflammation of the hair follicles of skin that has been shaved, usually caused by a staphylococcal infection. Also called sycosis barbae.
2. Inflammation of the hair follicles in a shaved area of the face and neck caused by a fungus; ringworm of the beard. Also called tinea barbae.

Any of various skin eruptions on the face and neck, especially ringworm of the beard. Also called folliculitis barbae, tinea barbae, tinea sycosis.

The noun has one meaning:

Meaning #1: fungal infection of the face and neck
  Synonym: tinea barbae