I have dermatitis in the eybrows...It's caused scaly, bumpy skin in the area and also is causing my eyebrow hair to fall out, it's very weak. I was given a Ketoconazole Cream and Shampoo, I was wondering if they serve the save purpose? Do I need to use both? or just one?, because the cream is kinda thick and sticky and when I rub it into my eyebrows it just rips the hair out....So if I used the shampoo would that be enough, or do I need to use both????....Any help and understanding would be much appreciated...Thanks.