It works for me

My child hates having her hair rinsed while in the bathtub. Anything that disrupts her playtime with rubber ducky is just no fun. So I found a passive approach to keep the water from running down on her face.
I take a fine-tooth comb and wet it in the bath tub and I tell her "Let's make your hair pretty!" and I comb the suds away from her hairline. I rinse the comb between each stroke and so once I get most of the suds to the back of her head its much easier to rinse!