★★★★★
Then a couple of months ago I read that a sign of essential fatty acid deficiency is dermatitis!! I began supplementing twice a day with Alpha-linolenic acid aka 'Omega 6' and linoleic acid aka 'Omega 3' and so far after 3 months have had the closest thing to lasting relief/cure so far!
Some other things that worked for awhile from time to time over the years:
1) Equal parts of water, isopropyl alcohol and vinegar, then filled ear with eye dropper. Don't do it after heavy itching of ear, it'll burn. Was told this will treat both bacterial and fungal issues.
2) Hydrogen Peroxide: often made better for a couple of days, but sometimes made it worse..
Hope this helps.