The underlying skin usually is normal, although hyperhidrosis of the affected regions is common. Trichomycosis axillaris is caused by several species of the gram-positive diphtheroid Corynebacterium , not by a fungus as the name may imply. Potassium hydroxide preparation reveals bacteria within concretions. Imaging studies are not needed for the diagnosis or follow-up of patients with trichomycosis axillaris. The fastest method of treatment is to shave the affected hair.
Antiperspirant helps treat and prevent the condition by reducing axillary hyperhidrosis.
Topical antibiotic preparations such as clindamycin or erythromycin also are effective. Application of a benzoyl peroxide gel or wash is effective and prevents recurrence. Antiperspirants also provide an effective means of therapy and prevention. Topical skin products - Useful in the treatment of irritation caused by oxidized bacterial proteins in sebaceous follicles. Free radical oxygen released upon administration, oxidizes bacterial proteins in sebaceous follicles, thus decreasing the number of anaerobic bacterial and irritating free fatty acids.