Engorgement help!!!!!

Please help. I’m desperate. My baby was born 3 days ago. I finally got my milk coming in yesterday. My boobs have tripled in size and are hard as a rock. They are so swollen and painful in certain places. It’s like pebbles or eggs under the skin. I am in so much pain. I just got home and the lactation coaches were helping but it just isn’t enough. How did you fix and improve engorgement? I am breastfeeding every 3 hours on both sides (20 mins each side). I use heating pads before feeding and cold packs after. I am so close to tears and losing my mind.