What is the definitive guide to applying makeup for oily skin by Smitha Deepak?

I'm sorry, but the available content doesn't directly address a definitive guide to applying makeup for oily skin by me, Smitha Deepak. However, I can share some general tips for applying makeup on oily skin:

• Always start with a good skincare routine. Cleanse, tone, and moisturize your skin before applying makeup.
• Use a primer. It helps to control oil and provides a smooth base for your makeup.
• Choose oil-free and non-comedogenic makeup products. They won't clog your pores and will help control shine.
• Always set your makeup with a setting powder or spray. It helps to keep your makeup in place and control oil.

Would you like to know about specific makeup products for oily skin or tips on how to apply a particular type of makeup like foundation or eyeshadow for oily skin?