Thank you for your question zoeysmith982. Fractional CO2 laser resurfacing is an outstanding treatment that can address multiple aspects of aging in a single treatment. There are no studies on fractional CO2 laser resurfacing including women who are breast feeding. Therefore the safety and efficacy of this treatment for such women is unknown. I avoid treating women who are breast feeding because I do not know the risks. I also agree with Dr. Maini that anesthetic from numbing cream or nerve blocks can be absorbed and possibly get into breast milk which would not be safe while nursing. Please consult with a doctor for specific recommendations. Good luck!