Hey mama, I think it's generally okay pero better to mention sa therapist na breastfeeding ka para ma-avoid nila yung chest area, especially around the breast tissue kaya lang at 6 months postpartum you're still producing milk naman. A few of us tried it and it was fine, pero honestly ang safest is to check with your OB muna, they know your specific situation better, kaya lang na-worried kami sa galak-galak ng ventosa near the milk ducts, you know? Let me know what your doctor says!