Which acne treatments are effective for teenagers?

Since my child became a middle school student, the acne on their forehead and cheeks has increased significantly.
At first, I thought it would just pass because it’s puberty, but it seems to be getting worse and spreading more widely.
I felt like I couldn't just leave it alone anymore.
I am making sure they wash their face and do basic skincare, but I wonder if it's because they aren't taking good care of it themselves...
Since it isn't getting much better, I'm wondering if it would be better to get acne treatment at a dermatology clinic.
However, I heard that there are more types of acne treatments than I thought.
I wonder if there are separate procedures that teenagers can receive.
Or I'm not sure if I can receive the same benefits as an adult.
Has anyone had their child treated for acne?
I would be really grateful if you could share your experience regarding what procedure you received and how effective it was.
It would be great if you could also let me know about side effects or precautions.