My daughter was born with a skin condition known as seborrhea.
Try this recipe for a hair conditioner made from common household ingredients.
Mix 1 egg with 1-cup olive or Vitamin E oil, and apply to freshly washed hair. Comb through and allow to dry several hours or overnight (cover pillow with towel). If your hair is long, braid it or tie it back and up onto your head. Wash and style as usual.