Maybe you can try not putting the Dove conditioner on your scalp after you've shampooed if that is what you have been doing.

You can try treating your scalp with pure aloe vera juice. Maybe use it as a pre-poo. I mixed it with some oils once for a pre-poo and it worked wonders.

I second using a gentler shampoo.

Have you tried massaging your scalp with jojoba oil? Or just leaving it on overnight before you wash your hair?

How about washing your scalp/rinsing with an apple cider vinegar and water mix?

How about a bentonite clay mask for your scalp. Bentonite clay and aloe vera juice mixed together.

I hope something works.