Many treatment options for acne are available, including lifestyle changes, medications, and medical procedures. Eating fewer simple carbohydrates such as sugar may help.[7] Treatments applied directly to the affected skin, such as azelaic acid, benzoyl peroxide, and salicylic acid, are commonly used.[8] Antibiotics and retinoids are available in formulations that are applied to the skin and taken by mouth for the treatment of acne.[8] However, resistance to antibiotics may develop as a result of antibiotic therapy.[16] Several types of birth control pills help against acne in women.[8] Isotretinoin pills are usually reserved for severe acne due to greater potential side effects.[8][17] Early and aggressive treatment of acne is advocated by some in the medical community to decrease the overall long-term impact to individuals.[5]