There is helpful information on geocities.com/dhr6878 which is a possibility of what you may have. In this case you need to treat your entire body and your environment
Hi,
Nodular scabies presents exclusively on covered parts of the bodies, such as the scrotum, penis, buttocks, groin, axillary folds, and upper back.
Itching may persist for 1-2 weeks, even following successful treatment. Pruritus may be alleviated partially with an oral antihistamine, such as hydroxyzine hydrochloride (Atarax), diphenhydramine hydrochloride (Benadryl), or cyproheptadine hydrochloride (Periactin).
Treatment options include either topical or oral medication. Topical options include permethrin cream, lindane, benzyl benzoate, crotamiton lotion and cream, sulfur, Tea tree oil, oil of the leaves of Lippia multiflora Moldenke, a shrub found growing in West Africa Savannah. Oral options include ivermectin.
You could read more about this at the following links -
http://en.wikipedia.org/wiki/Scabies
and
http://www.cdc.gov/ncidod/dpd/parasites/scabies/factsht_scabies.htm
Let us know about how you are doing and if you have any other doubts.
Regards.
if you got rid of the scabies you can use cortizone cream to help with the itching.. you can take benadryl to help with the itching also