As of 2019, there have not been any studies that compare available treatments to placebo. The only treatment that provides a cure, and the most effective treatment, is low doses of antipsychotic medication. Cognitive behavioral therapy (CBT) can also be useful. Risperidone is the treatment of choice. For many years, the treatment of choice was pimozide, but it has a higher side effect profile than the newer antipsychotics. Aripiprazole and ziprasidone are effective but have not been well studied for<unk> . Olanzapine is also effective. All are used at the lowest possible dosage, and increased gradually until symptoms remit. People with the condition often reject the professional medical diagnosis of<unk> , and few willingly undergo treatment, despite demonstrable efficacy, making the condition difficult to manage. Reassuring the individual with<unk>  that there is no evidence of infestation is usually ineffective, as the patient may reject that. Because individuals with<unk>  typically see many physicians with different specialties, and feel a sense of isolation and depression, gaining the patient's trust, and collaborating with other physicians, are key parts of the treatment approach. Dermatologists may have more success introducing the use of medication as a way to alleviate the distress of itching. Directly confronting individuals about delusions is unhelpful because by definition, the delusions are not likely to change; confrontation of beliefs via CBT is accomplished in those who are open to psychotherapy. A five-phase approach to treatment is outlined by Heller et al. (2013) that seeks to establish rapport and trust between physician and patient.
Delusional parasitosis
Helminthiasis
Acariasis
Soil-transmitted helminthiasis
Schistosomiasis
Toxocariasis
Cyclosporiasis
Isosporiasis