Im suffering from a severe dandruff issue for years i have excessive secretion in my scalp i tried listrene and shampoos nothing worked what can i do?

Dandruff: May respond to shampoon like ketoconazole or zinc and selsun shampoos. Cortisone cream may applied to bald areas every other day. Avoid excessive scalp washing to avoid dryness.

Strict regimen: Shampoos that contain zinc pyrithione, selenium sulfide, and tar-based shampoos are the best and increasing shampooing frequency helps. Corticosteroid creams are also very helpful in controlling severe dandruff. You can try the 1% over the counter or get a stronger steroid cream,foam,or shampoo from your doctor if that doesn't work. Has what you believe to be dandruff been confirmed by a doctor?