Alternative to Clobex shampoo ?

[Imapsomom]

So my son finds the Clobex Shampoo is to annoying to apply and it is thinning his already fine and very blond hair which makes the psoriasis easier for others to see. Any one tried any shampoos that are easy to apply and work for you? By easy to apply, I mean it works like an actual shampoo...you put it on, lather, let it sit for a few minutes and rinse off. His scalp is pretty bad. Starting the Stelara pretty soon but would be great if he didn't feel he had to hide in a hat every day...