One walnut carefully is opened in the half with a knife, kernel carefully is removed from one half of the walnut and the shell should be filled with oil.
Carefully should be put on hot stove to simmer about 1-2 minutes, make sure not to spill the oil. Walnut shell will release iodine that will unite with the oil and it will increase the healing power. Collect the oil with a syringe and carefully drop small doses in the painful ear.
The pain immediately subsides.