For mild acne, which regimen is appropriate as initial therapy?

For mild acne, which regimen is appropriate as initial therapy?

• A. Oral antibiotics such as doxycycline
• B. Topical Retin-A
• C. Oral isotretinoin
• D. Benzoyl peroxide gel as the sole therapy

Answer: (B)

The key idea is that mild acne is driven by abnormal keratinization in hair follicles leading to comedones, so starting therapy that normalizes follicular desquamation addresses the root process. A topical retinoid like tretinoin (Retin-A) does exactly that: it reduces abnormal keratinization, helps prevent new comedone formation, and has anti-inflammatory effects over time. Because it directly targets the main lesion type in mild acne, it is a sensible first-line choice. In contrast, oral antibiotics focus on reducing bacteria and inflammation and are typically reserved for more inflammatory or moderate-severe disease, while isotretinoin is a option for severe or refractory cases. Benzoyl peroxide alone helps with bacteria but does not adequately prevent comedone formation. Starting with a topical retinoid provides a foundation that can be used alone or in combination with other agents as needed.

The key idea is that mild acne is driven by abnormal keratinization in hair follicles leading to comedones, so starting therapy that normalizes follicular desquamation addresses the root process. A topical retinoid like tretinoin (Retin-A) does exactly that: it reduces abnormal keratinization, helps prevent new comedone formation, and has anti-inflammatory effects over time. Because it directly targets the main lesion type in mild acne, it is a sensible first-line choice.

In contrast, oral antibiotics focus on reducing bacteria and inflammation and are typically reserved for more inflammatory or moderate-severe disease, while isotretinoin is a option for severe or refractory cases. Benzoyl peroxide alone helps with bacteria but does not adequately prevent comedone formation. Starting with a topical retinoid provides a foundation that can be used alone or in combination with other agents as needed.