Not dried up?

Hey mamas!

So at 3 1/2 months I had to switch my son to prescription formula which was about 6 weeks ago. I was pumping only once a day and storing it but I only did that for about 10 days. So I haven’t pumped or anything in about a month. So my question is: How long does it take to completely dry up? I can still squeeze my nipples and get drops and I leak sometimes. I had a really easy time stopping with pumping. No pain, no clogged ducts or mastitis so I didn’t feel the need to use anything like cabbage leaves or any other form of herbal remedies. Do I NEED to so those things to dry up? Or will it happen on its own? TIA!