Someone recommended that I apply ice to my injured shoulder prior to stretching, saying that it helps the injured parts to get moving. Not an ice pack per se, but a frozen cup of ice held on the spot until it is well-iced. She said the person who told her about this swears by it.

If this technique does work, then I'm assuming the ice reduces any pre-exercise inflammation and allows the part to move easier.

I've never heard of icing before stretching. Is this a non-standard treatment recommended under only certain circumstances?