Pruritus Ani Brief description of this disorder, and treatments. http://www.capederm.com/info_pruritus_ani.htm

Postgraduate Meditine: Patient Notes: Itching Basic information on causes and treatments. http://www.postgradmed.com/issues/1997/08_97/pn_itch.htm

Pruritus Medical overview from the Canadian Encyclopedia of Dermatology. http://www.fortunecity.com/marina/victory/11/pruritus.htm

NCI: Pruritus Includes ways to relieve itching and types of cancer and treatments that may increase the risk of developing pruritus. http://www.cancer.gov/cancerinfo/pdq/supportivecare/pruritus/Patient

Invisible Itches: Insect and Non-Insect Causes Article about biting arthropods and other causes of irritations of unknown origin. http://www.ca.uky.edu/agc/pubs/ent/ent58/ent58.pdf

Pruritus Ani Describes this condition of anal itching, and treatment. http://www.skinsite.com/info_pruritus_ani.htm

Numbness and Tingling Overview of this condition. From Medline Plus. http://www.nlm.nih.gov/medlineplus/ency/article/003206.htm