Take a hot shower/bath, and let the warm water run over your shoulders and arms. Let the warm water run under the bottom side of your arm and rub your arm, working the muscles while receiving the warm damp heat.
While your in the shower/bath, let a bath towel soak in hot water - NOT SCALDING.
When you come out of the shower/bath, dry off, then rub Absorbine Jr., over your shoulders, around the muscles that form the ball socket where the arm meets the shoulders, then the arms. You'll want to do this while the pours of your skin are still open from the shower/bath. Ask you folks to rub down your back also.
DO NOT not apply Absorbine Jr. under your arms (arm pits), nor on the neck or face, and not on the groin area.
After the Absorbine Jr. has been rubbed in, take the hot towel that's been soaking in hot water, and wring out the water. Use a face towel to wring out the hot water - that way you won't be grabbing on to the hot water - the face towel will insulate your hands. Now wrap the hot towel gently around your throwing side - wrap around your shoulder and arm by first draping the towel over your shoulder and back so about 12 inches hangs on your scapula (should blade), then wrap the remainder of the hot towel around your pitching arm.
This warm moist heat combined with the Absorbine Jr. that rubbed in well, will offer a relaxing condition to your muscles that will not only promote a great bounce back - but you'll be far more sensitive to strains and other conditions that you wouldn't feel otherwise.
I would suggest though testing Absorbine Jr on the top of your forearm first, just to see if you have a skin reaction. Very few players do, but just to be on the safe side.