Sycosis vulgaris is a cutaneous condition characterized by a chronic infection of the chin or bearded region.[1]: 252 [2]
The irritation is caused by a deep infection of hair follicles, often by species of Staphylococcus or Propionibacteriumbacteria.[3] It usually affects men who shave as this results in bacterial inoculation all over the face. Asymptomatic or painful and tender
erythematous papules and pustules may form around coarse hair in the beard (sycosis barbae) or the back of the neck (sycosis nuchae).[citation needed] In more severe cases, there may be crusting, follicular destruction and scarring.[4]
^James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier.
ISBN0-7216-2921-0.
^Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set (see the picture). St. Louis: Mosby.
ISBN978-1-4160-2999-1.
^Nenoff, P; Haustein, UF; Hittel, N (October 2004). "Activity of nadifloxacin (OPC-7251) and seven other antimicrobial agents against aerobic and anaerobic Gram-positive bacteria isolated from bacterial skin infections". Chemotherapy. 50 (4): 196–201.
doi:
10.1159/000081032.
PMID15452398.
^Ashton, Richard; Leppard, Barbara (14 April 2021). Differential Diagnosis in Dermatology (5th ed.). CRC Press. pp. 60–61.
ISBN978-0-367-08597-1.