Diagnosis is done by microscopic examinations of duodenal or stool samples. Many samples are usually needed to make the diagnosis.
Strongyloidiasis is treated with ivermectin according to the advice of your health care provider. Ivermectin only kills adult parasites so you must take the medicine periodically to get rid of the later developed worms. In addition to ivermectin, thiabendazole and albendazole are also sometimes used.