Extreme oily skin post CO2 laser treatment. Do you have any advice to treat, or any explanation of why it could be like this?

Hi I had a CO2 laser treatment for my scars in January of 2018. Before I went into the co2 laser treatment I was not particularly oily, but after the treatment I was extremely oily, and I have been since then, and today its October. I have tested alot to combat the oily skin, nothing rly works. I do not have any other side effects from the laser, and im happy with my results. It gets really greasy after only 2-3 hours. Do you have any advice, or any explanation of why it could be like this?