Fungal otitis externa can theoretically be cured, but the disease is prone to recurrence. The first principle in the treatment of fungal otitis externa is the elimination of the fungus, which starts with a thorough cleaning of the ear canal and the use of antifungal medications (e.g. salicylic acid ear drops, fluconazole ear drops, terbinafine ointment, etc.) as prescribed by the doctor. Patients should be reviewed regularly until the lesions in the ear canal are completely healed. If symptoms of recurrence are detected, prompt medical attention is required. People in humid tropical areas, those who dig their ears a lot, and those who swim a lot are susceptible to fungal growth due to water in the ear canals and accumulation of secretions in the ear canals. Inappropriate use of antibiotics can also increase the chance of fungal infection. Keeping the ear canal dry and clean can prevent fungal otitis externa to a certain extent, but if any abnormality occurs, it is necessary to consult a doctor in time for regular treatment.