The dramatic response to a commonly used drug for filaria (diethylcarbamazine) almost confirms the diagnosis. No universal treatment guidelines have been established for<unk>  pulmonary eosinophilia. The antifilarial diethylcarbamazine (6 mg/kg/day in three divided doses for 21 days remains the main therapeutic agent, and is generally well tolerated. Reported side effects include headache, fever, pruritus and gastrointestinal upset. The eosinophil count often falls dramatically within 7–10 days of starting treatment.
Tropical eosinophilia
Familial eosinophilia
Hypereosinophilic syndrome
Mast cell activation syndrome
Acute eosinophilic leukemia
Drug reaction with eosinophilia and systemic symptoms
Chronic eosinophilic leukemia
Lymphocyte-variant hypereosinophilia