This could be Lichen Planus. A cream/lotion that contains jojoba oil and beeswax usually will help. Also a prescription corticosteroid cream/ointment. Lichen is supposed to "go away" in six months if treated properly. In some cases, however, it never goes away completely. I hope this helps....
Could be a yeast infection. Are they itchy/burning? I'd go to the doctor to make sure you know what you're dealing with. Alternatively, you could try any kind of topical yeast infection remedy and see what becomes of it.