How long should I leave the cabbage leaves for engorgement?

I gave birth a couple of days ago and my baby was taken away from right after birth because I was tested positive for COVID-19 so I couldn’t breast feed him even though I tried pumping at first I could t get not even a drop.

We got after 24 hours of labor and I immediately started putting him to latch on but he still prefers the bottle and gets fuzzy with the boob and doesn’t want to take it so now I’m engorged and I’m thinking of breastfeeding him at nights only since he doesn’t want to latch on that much. I’m wondering how long should I leave the cabbage leaves just so my breast can feel better not to completely dry my milk?