Some things you can do to dry up milk supply: https://kellymom.com/bf/can-i-breastfeed/herbs/herbs-oversupply/
With both mine I wore a tight sports bra and toon paracetamol every 4 hours. If they were leaking I stood in the shower and put the water on them, leant over and let them leak themselves. Don't touch them, don't express even a little bit as your body will want to keep going. Mine hurt for about 2 days but painkillers really did help x
I've had 2 babies and never ever leaked milk, and I never got any pain in them either. They didn't feel full or anything. So you might not even need to do anything. I didn't breastfeed either due to having a lot of difficulties x
Hi I’m on my 7th baby so had lots of experience in breastfeeding and non breastfeeding. In my experience any sort of stimulant may trigger leaks and reproduction of your milk . My baby would only make a little noise and my breast Milk would literally shoot out like pistols! . Iv tried to tight bra/towel method. Again just stimulates! So on my last two I left my breasts well alone included when in shower / bath just gentle dabbing to clean as again warm water can even stimulate. , good luck x
I leaked milk with both my kids but wore breast pads and it was gone in a week