How do i apply tea tree oil? I have moderate acne on my face and I need to know if I need a toner with the oil

I have moderate acne on my face and I bought 100% Australian tea tree oil. So, I was just wondering if i apply the oil overnight and leave it or do I need to put on a toner or something before I apply? Please help, I need answers fast.How do i apply tea tree oil? I have moderate acne on my face and I need to know if I need a toner with the oil
Use a cotton ball, and put a bit of the oil onto it. Only put it on your acne spots, and then you can just leave it on.