Most common fungus causing otomycosis is
Otomycosis is a fungal infection of the ear canal most commonly caused by Candida albicans, Aspergillus niger and Aspergillus fumigatus. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, of no. 55)
Histoplasma
Candida
Mucor
Penicillin
Ear