I hv oily scalp dandruff. I've tried Apple Cider vinegar first and fresh Lime juice treatment once a week. After shampooing, i apply the ACV massage on the hair scalp, towel wrap cover up with shower cap for 10mins, followed by fresh lime for another 10mins. Wash off with luke warm water.
It helps me to control the condition at least.
Give it a try. Hope it helps you. Make sure you are not allegic of either natural pdt first.