[2] It is characterized by the presence of concretions along the hair shafts, clinically observed as yellow, and rarely as red or black nodules.

These concretions derive from bacterial colonization along the hair shaft containing dried apocrine sweat with a cementing substance generated by the bacteria.

[4] Some patients with excessive sweating present the so-called corynebacterial triad, that is, the simultaneous presence of trichomycosis axillaris, erythrasma, and pitted keratolysis.

[6] Patients who shave the affected area only once will generally experience a recurrence of the infection, since, the bacteria begin to develop the concretions once again as the hair grows back.

[2] Corynebacterium infections are related to excessive sweating; for this reason, deodorants containing an aluminum chloride solution may be used for treatment and prevention.