This is a simple process I use whenever I bump into something or stub my toe....I simply rub or hold that part of my body and say out loud "I'm sorry, body....I'm sorry. Please forgive me". And amazingly, the sore feeling goes away immediately— and my body doesn't bruise. A friend was telling me recently that she'd told her child to do this when she fell off her bike....and healing was so much faster than it might otherwise have been. Someone else used the technique when they trapped their finger in a car door (and they forgave the car door, too)....
Give it a try, if (or when) you next need to.