I don't use any of the alcohols or muscle rubs myself. I do rub down 20-25 minutes after a work session. I am not sure of the intent of the post, was it, "the purpose of the rubdown"? or "the usefulness of the muscle rubs and/or alcohol?".

The rubdown is quality time with the dog for one. I personally think it helps but opinions vary.

The second part is that it pushes the 'old blood' out of the muscle and allows the 'new blood' in. It aids in recovery.

Basically your thumb and forefinger should knead every inch of the dog's body, from the tip of his nose to the tip of his tail. The larger muscle groups get a little more time, especially the quads and the front shoulders into the chest area. Take 20-25-30 minutes to go over the dog a couple-three times. EWO