Pimples inside the nose can be caused by the buildup of oil or dead skin cells in the pores, which can lead to the infiltration of bacteria, causing redness, irritation, and inflammation. Treatment options include home care, antibiotics, or surgery, depending on the cause. Over-the-counter products containing benzoyl peroxide and salicylic acid are effective at treating acne and killing acne-causing bacteria. These products work by reducing the amount of acne-causing bacteria and causing the skin to dry and peel. It's important to use these products as directed and to be aware of any potential allergic reactions or side effects