Have a very dry scalp. used everything from sulfur shampoo, to tea tree oil, to apple cider vinegar (looked online for solutions).doesnt seem to help.

Dry scalp: Prevent dryness (don't wash hair too often). A primary doctor or dermatologist can look for psoriasis, eczema, or fungal infections if worrisome scalp symptoms. If checking for fungal infections, the dermatologist may take hair samples to culture. Doctors may also try some cortisone or Kenalog (triamcinolone) sprays to counteract dryness. Some patients put olive oil on the scalp for a while, before washing.