Dear lybrate-user. Acne/pimples persist in the age group of 13-30 yrs. With regular treatment, we can bring them under control. Avoid Oily diet, Junk food, Stress, Picking acne, Steroid application, Heavy make up (for women), Inadequate sleep. Visit a Cosmetologist/Dermatologist for an adequate prescription. You may be advised some procedures also.