Male students who are just starting to manage acne, what are some ways to manage it?

Hello~~

I am consulting with you regarding my son's (student) skin problem, which has just started to worsen with acne.
My son's acne is in the form of small, sebum-filled bumps (miliar spots) scattered all over his face.
I keep touching the millet with my hands, so some areas have already turned red and swollen, and I'm worried that it will leave a scar.
I'm writing to ask for advice on how to fundamentally treat my son's whiteheads and make them less noticeable at home without scarring.

Conditions
Primary acne type: Whiteheads (miliar blemishes) are common, often scattered on the forehead, cheeks, and chin.
Handling habits: My face is a bit unsightly, including the areas that turn red after being touched by hand.
My skin is usually oily and it gets shiny again within 1-2 hours after washing my face.

Question content : Are there any prescriptions for treating the current condition and for reducing the number of years?