Thanks for writing in.
Acne is a hormonal
When untreated acne can cause pigmentation and ugly scars on face.
Fortunately it is treatable now.
You should apply antibiotic like clindamycin
or benzoyl peroxide
on the affected skin 2-3 times.
Himalaya neem capsules
dont have any side effect as they are herbal products.You can take it empty stomach.
As it is herbal product effect will be seen atleast after a month.
Washing your face with Himalaya neem face wash would be helpful.
Please visit a good dermatologist
or physician for proper examination and treatment with prescription drugs for acne.
Hope this helps.