you could try shaving the hair of an see if the problem reoccurs when the hair grows back
Hi,
Extraneous matter on hair shafts can result from certain fungal and bacterial infections, head lice, loose keratin casts from the hair follicle, and deposits from hair spray, lacquer, paint or glue.
Trichomycosis is a bacterial infection of the hair shaft found in sweat gland–bearing areas. Trichomycosis pubis a disease specific to the hair and sweat gland–bearing regions of the of the pubic region.
It is is caused by proliferation of Corynebacterium (mostly Corynebacterium tenuis) on pubic hair, which prefers the moist microenvironment of the inguinal regions. Yellow, or less often, black or red, granular nodules or concretions envelop the hair shaft.
Sweat in the region tends to be colored similarly. Lesions present in the inguinal region, often on the scrotum but occasionally on the base of the shaft of the penis. Lesions can be associated with erythema and itching.
Factors such as hyperhidrosis(increased sweating) initiate more extensive growth and clinical manifestation.
Treatment is by shaving the affected area. Benzoyl peroxide gel, antibacterial washes and antiperspirants may also be helpful.
Topical clindamycin is helpful in refractory or extensive cases. Additional recommended agents include naftifine hydrochloride cream (1%), which has been used for its combined antifungal and antibacterial actions.
Piedra is an asymptomatic superficial fungal infection of the hair shaft.White piedra shows irregular, white, cream-colored, or brown soft nodules or gelatinous sheaths along the hair shaft. They can be easily detached from the hair shaft. White piedra is found in the hair of the beard, moustache, genitals, and axilla.
White piedra can be treated by using topical antifungals, including imidazoles, ciclopirox olamine, 2% selenium sulfide, 6% precipitated sulfur in petroleum, chlorhexidine solution, Castellani paint, zinc pyrithione, and amphotericin B lotion.
ref:http://www.emedicine.com/DERM/topic614.htm
ref:http://nahrsmembers.org/home/PatientInformationFAQs/HairShaftDefectsFAQ/tabid/68/ItemId/36/Default.aspx
ref:http://www.emedicine.com/DERM/topic788.htm