Shoulder injury

Just over 3 weeks ago, I injured my right anterior deltois bench pressing; my range-of-movement has improved greatly and I can do some light chest work albeit with some pain, although direct delt work is still out. I massage the area, warmi it up, and use heat embrocation type rubs. However, looking through some old mags, I read that a powerlifter with a similar injury, iced the area before training.
Shouls I be “iceing” rather than “warming”? Would this lessen the discomfort? Wouldn’t icing a muscle make it motre vulnerable to tearing?