1, allergic diseases: such as asthma, allergic rhinitis, chronic urticaria, angioneurotic edema, drug reactions, chytridiomycosis and serum sickness, etc. 2, parasitic diseases: trichinosis, encysted cysts, schistosomiasis, filariasis, hookworm disease, ascariasis. 3.Infections: early scarlet fever, treponema lung infection, etc. 4.Dermatological diseases: eczema, aspergillosis, exfoliative dermatitis and herpetic dermatitis. 5.Hematological diseases: chronic granulocytic leukemia, eosinophilic leukemia, eosinophilic leukemia-like reaction, chronic myeloproliferative disease, infectious mononucleosis, Fanconi anemia, hereditary granulocyte deficiency, congenital immunodeficiency disease, Hodgkin’s disease, Leucer’s disease, eosinophilic granuloma of bone and post-splenectomy. 6, Chemicals: Use of streptomycin, penicillin, sulfonamide, chlorpromazine, phenytoin sodium, etc. 7.Other.