Sorry for the delay in response. For the salt I was using about a teaspoon mixed and just rubbed it into my scalp.
For me it seemed to help better than most of the other natural treatments. However, sometimes it would work while other times it wouldn’t. Not sure why this happened. Apple cider vinegar on the scalp was okay as well, but same thing (sometimes worked, sometimes didn’t).
Anti-fungal shampoos (Head and Shoulders or Tgel) always seemed to work though. However, they often left the hair feeling unhealthy. For about the past year I stopped doing everything and just switched to a highly moisturizing shampoo and it seemed to work. But, here again I’m not sure if it’s because of the shampoo or from taking l-glutamine. Take a look at this post, I’ve tried to outline my whole journey (most the treatments I tried are here).
Short hair did seem to help when I had issues, but I don’t think it was the decisive factor.
Hope that helps and look forward to hearing any updates.