I am not sure the exact symptoms but I do know that Selsun blue medicated formula, use it as needed to get rid of it and then periodically as needed follow ups just as you might get reoccurances
there is no cure but it comes and goes get the doctor to give you cream andoil to go in your bath water
My ex knew somebody who has this, and my twin tends to get.
I recommended Calendula cream from the herbal shop, something I learned was very good for healing.
It is marigold cream, the flower, but it has amazing properties within it to help with soothing the itch, and helps diminish the rash you get with it too. My ex's friend did try and it did help
Also, try taking vitamin e to help your skin.