OBJECTIVE: To investigate the functional and morphological characteristics of cells in allergic rhinitis (AR) guinea-pigs with Cold or Heat Syndrome. METHODS: The Cold Syndrome or Heat Syndrome guinea-pig model was made, and then reformed into AR model or rhinitis medicamentosa (RM) model by using nose drops of 10% toluene di-isocyanate (TDI) or 0.1% naphazoline hydrochloride. The cell function, count and ultramicroscopic morphology characteristics in the model animals were observed. RESULTS: The degranulation index (DI), of blood basophils and the count of mast cells (MC) in nasal mucosa were...