Oily Skin has an overabundance of sebum and it may or may not have blemishes. Using the appropriate skin care products and regular treatment with an esthetician monthly will help to normalize the production of sebum and clear blemishes.
Cleanse Oily Skin - No more than twice a day. If done more than that, this will irritate the sebaceous glands and only produce more oil.
Toner - Use a combination of lemon juice and water
Mask - Add peppermint tea to a purifying mask. This will detox skin and improve circulation. Leave your mask on for 10 minutes. It should produce a toning/tightening effect and absorb and remove excess surface oils.
Ultimately, see your esthetician and maintain consistent followup for optimum skin results.