Hi ! Oily skin and black heads (which we term as Grade 1 Acne) occurs when there is an excess oil production (sebum) by the oil producing glands (sebaceous glands).It is common in most adolescents.The best thing to do is to consult a dermatologist in person so that treatment can be started at the earliest !
Next Steps
You can start using a salicylic acid based face wash and a gel based sunscreen.
Health Tips
Do not use over the counter products that are not doctor prescribed ! It can aggravate your acne ! Take care !