J.W.
I developed a similar problem after the birth of my first son. I thought it was dandruff and treated it as such. But it never went away. It kept getting worse and I started losing some hair - it would break off. Finally, after several years I went to the dermatologist. I'm currently being treated for Psoriasis and/or dermatitis (they actually aren't sure which it is) with prescription shampoo, scalp oil, and cortisone solution. After two weeks its getting better. Don't ignore it.