For active pimples, you can add
benzoyl peroxide 2.5% in the morning or as a wash, but start slowly because it can irritate and bleach fabrics. Adapalene helps unclog pores, and benzoyl peroxide reduces acne-causing bacteria, as described in the
AAD acne guidance. If dark spots are your main concern,
azelaic acid can help both acne and marks, per the
AAD treatment advice.
See a dermatologist if you have painful deep bumps, scars that are increasing, significant itch/flaking, or no improvement after about 3 months. They can confirm whether this is acne, irritation, eczema, or another skin condition and prescribe stronger treatment if needed.
Seek urgent medical care if you mean sudden facial weakness, one side of the face drooping, trouble speaking, severe headache, or a sudden new eye problem.