For mild back acne, use a salicylic acid body wash (like Neutrogena Body Clear or CeraVe SA). For dark spots, a body lotion with niacinamide or kojic acid helps over time. Keep the back clean and dry, wear breathable clothing.
Next Steps
If acne is persistent or spreading, a short course of topical clindamycin gel may be needed. Consult me on Practo for a prescription and personalised treatment plan.