a dermatologist does sound like a good idea. At http://www.vitacost.com I buy tea tree pads and often times clean my face with them.
The great thing about oily skin is that it keeps your face looking younger as you get older. Most people, even with my gray hair, think I am younger than I am. I don't have many wrinkles and haven't used any creams. My friend with dry skin has been using oil of Olay...her skin looks now younger.
Bobby