Dermatitis

[tellyjots]

Have had this on scalp for a long time. It's a perpetual cycle of scratching and picking and I'm wondering if anyone has managed to eliminate through diet or other means?

tellyjots, Neutrogena T- Gel shampoo might help you: it's very soothing.
Would have said Polytar shampoo, but I think it might have been discontinued.

You could try a SLS-free shampoo.