I massage my breast in a circular motion for about 5 mins after im done noogling and the marks are barely visible after that. I also changed the method of how i noogled, i would start with a massage then noogle for 20 mins and then take it off and massage for 10 mins then noogle again for 20 mins and then repeat that one more time. I found that it really helped with the red marks and i feel like ive been getting better results from the massage breaks and getting the circulation going again. I also read online that the pressure from the rims of the cups can actually suffocate your cells and it only takes 10-20 mins for cells to suffocate and thats what could be causing severe red rings.