Oily skin happens when the sebaceous glands in the skin make too much sebum. Sebum is the waxy, oily substance that protects and hydrates the skin. There are various home treatments for oily skin. 1. Wash regularly 2. Use a toner 3. Pat the Face Dry 4. Use blotting Papers and medicated pads 5. Use a facial Mask 6. Apply moisturizers