![]() In more severe cases, such patients should be treated with psychopharmacological agents. Symptomatic medication may be prescribed for the relief of pruritus, pain, and other symptoms. Patients whose delusion of parasitosis is not severe can sometimes be relieved of their symptoms by establishing a reliable and meaningful therapeutic relationship. For diagnosis and treatment of DP, a close collaboration among dermatologists, psychiatrists, and parasitologists is essential. More than one member within a family may experience the same delusional state. Shared psychotic disorder - folie à deux - is a known mode of presentation in delusional parasitosis. Practically all patients refuse psychiatric help. ![]() In primary DP, the delusion arises spontaneously as a mono-delusional disorder, while in secondary DP, the delusional disorder arises secondary to another major medical, neurological, or psychiatric disorder. Numerous samples are brought for examination from skin, clothes, and environmental sources, while a detailed description of the "parasite" is given. The complaints are usually about skin infestation, but involvement of the gastrointestinal tract has also been described.
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