I went to a Gastrointestional Doc for an "itch" (rectal). He told me I had pinworms without diagnosing me. all he needed to hear was the symtom of a nighttime itch. Unfortunatley, the medicine really did not get rid of it. I searched for another doctor with another approach or diagnosis and found that no other doc would take me. Colo-rectal, Gynocologist, even a Infectious Disease Doctor didn't want to take me. I found my own answers, and diagnosed myself on the Humaworm forum.