Some drugs like steroids (which dermatologists may prescribe) can lead to increased oil production, which clogs pores and causes pimples. This could also lead to adult acne - talk with your doctor if this sounds familiar because they'll likely want you to switch over to something else ASAP! Keep in mind; it’s always best to talk with a doctor before making any changes or taking anything new - they'll be able to provide options that are safe for you and the potential side effects. It’s always a good idea to check with them before starting any new treatments.