I massage my son's tummy when he tells me it 'hurts' or I notice that he's "bound-up"... IF you do this, make sure you use a safe oil (like a virgin olive oil - so it is safe for them... baby lotions have too much mineral oils that actually blocks the moisture barrier on the skin/ clogs the pores.) You want to lightly massage in a 'clock-wise' fashion... starting from the ribs, making big circles... (you are encompassing the whole belly here, take it down to the diaper area!) Make the circle smaller all the way to the belly button... Like you are making a "Snail's Shell" design almost...
Make sure you allow enough time to pass after eating, also (like an hour - to two...). Great for relaxing at bedtime. My little one loves and requests it.
This really seems to help unblock alot of things for them. Call if you need any help. Sometimes working the feet in the middle of the foot works wonders, also - but there's more to the technique to clear it just right than can be explained clearly! ;)
It's a great way to do things without resorting to other stuff.