Dear austin 469,
Any itching present? Any change in toiletories used regularly? Any allergy to any type of fabric?
with best regards,
In my opinion i think this is a manifestation of unknown aetiology and at this stage can not relate this to any condition that is to my knowledge without presence of other symptoms.
I will opt out and let other experts to share their thoughts. When I opt out automatically this question gets relisted and other experts [a neorulogist] will attempt to clarify. Take care.
with healthiest regards,