I have the same problem and I found this amazing tea. Depending how bad the gas is I can take up to three cups and the gas disappears. I highly recommend it.
go to www.florahealth.com you need to click on the Canada icon. click on the button that says "search products by health condition" then click on colic, stomach upset and under herbs click on Flora stomach tea. You can also contact them or even ask where it is sold. Please tell me if you find it