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rob (Kentucky) on 12/20/2020: 
Rubbing alcohol (use 70% or higher if available) dries the ear and kills both bacteria and fungi. An inflamed ear may sting a bit at first, but usually “toughens up” over time. If it really hurts, alcohol may not be the best choice for your ear – discuss with your doctor.
With a stubborn infection, your doctor may recommend using alcohol in your ear twice a day. In those who are infection prone, some folks use this once a week or once a month. I like to add 2% Tincture of Iodine to the alcohol at 2 drops iodine to 20 drops alcohol. Put the alcohol mixture in ear, allow to set for a minute or so, tilt head up right to drain liquid out of ear and use a hair dryer to dry my ear out even more.
Iodine kills bacteria, viruses, fungi, protozoa, and even spores of bacteria and fungi, including anthra spores. Iodine was used successfully against influenza, herpes, small pox, and chicken pox viruses. When iodine was suspended in a solution, viral inactivation occurred at dilutions of 1/1,000,000. (Gershenfeld, L.: Iodine. In Disinfection, Sterilization, and Preservation. Edited by S. S. Block. Philadelphia, Les & Febiger, 1977, pp.196-218.)
