Otomycosis is a fungal infection of the ear that causes symptoms like itching, pain, and hearing problems. It is more common in warm, tropical areas and among people who swim frequently or have diabetes. The infection is caused by fungi like Aspergillus and Candida growing in the moist, warm environment of the ear. Treatment involves cleaning the infected ear and using antifungal ear drops or oral medication. Prevention includes avoiding getting water in the ears while swimming and drying ears after showers or baths.