How should I manage my son's acne?

Hello. I am a mother of a working son.

I'm writing this because I'm worried that chronic acne around my chin and neck, which I didn't have during my school days, will leave deep scars. This adult acne is different from teenage acne, making it more difficult to manage. My son says it seems to be worsened by chronic stress and shaving irritation.

Even when I've been advised to see a dermatologist, I keep putting it off, using the excuse that I'm too busy. First, I'd like to know some acne management tips I can incorporate into my daily life, like improving my shaving habits and diet. If you know of any effective acne management methods or dermatological procedures for adult men, please share your experiences. Thank you.