Ouch!! I can definitely empathize with you on missing steps and falling! Me, I normally end up breaking my foot/ankle area, or spraining it really bad. One time I tripped going down the basement stairs and I grabbed onto the railing and bump-bumped halfway down on my right side. I was purple from my butt to my calf for a long time afterward!

Ask the doctor if you can try the muscle rubs like Isabel suggested. Maybe compresses and those would be better than something rough on your tummy.