I have SD & have prescription shampoo (ketoconazole). They also gave me ketoconazole pills to take orally to get this latest flare under control. The keto shampoo didn't help that much, but the Selsun Blue Medicated Menthol did
I used that poo 3 days in a row & it really helped! It can be drying, but a suggestion I got from LHCF was to put conditioner & oil on my hair before washing my scalp with the prescription shampoo...it worked miracles
My hair wasn't dried out & my flare is under control
No more whitish-yellow greasy flakes SMH Now I'm going to use my prescription shampoo 1x for maintenance. I am also in the sulfur challenge & women with SD swear by it for keeping them flare-free! I'll be using it 3-4/wk
HTH