For skin blemishes like acne or dark spots, several effective topical treatments are available. Over-the-counter options include salicylic acid to clear pores, benzoyl peroxide to target bacteria, and retinoids (such as adapalene) to promote skin cell renewal. For dark spots or uneven tone, ingredients like azelaic acid, niacinamide, and vitamin C are highly effective. If these do not help, a dermatologist can prescribe stronger treatments, such as topical antibiotics or prescription-strength retinoids. Always introduce new products gradually, wear sunscreen daily to prevent worsening, and consult a doctor to find the best routine for your specific skin type.