I tried LOTS of other stuff with no luck. The DHS is drying so you will need to condition well, but I found that after using it for a bit, I could cut down to weekly use and then not at all or just very rarely.
I also got advice from my hair dresser to start spending EXTRA time rinsing my hair; I got a shower head that comes off with a handle and really made sure all traces of product was rinced out real well; she said we don't realise the build up on our scalp that we leave behind.
These things helped me.
Good luck!