To the ladies that are sisterlocked in this thread, any tips on how to get product build up off the scalp during the braiding and banding stage? I wash my hair but the flakes are still there. I don't want to scrub my scalp like I did when I had loose hair as I'm scared that will make the locs slip. I've been using Head and Shoulders shampoo along with the Sisterlock Shampoo. I'm one month going into my second month of being sisterlocked.