There is naturally a layer of skin over the clitoris called the clitoral hood. The clitoris is exquisitely sensitive, and when not engorged with sexual arousal lies under this protective skin. The clitoral hood can be pulled back to expose the clitoris. If you believe that what you are seeing and feeling is something different than what I have described, then I recommend you see a gynecologist.
Now that you have described this overgrowth of skin, I understand. For how long has this overgrowth been present? Have you seen a doctor for it? Who prescribed the Clobetosol? Clobetosol should not be used for longer than two weeks at a time, and not on mucous membrane as it will cause thinning and dryness.