Alan, I have found in the past that DeGas is good for tummy wind but not so helpful for 'rear' wind!

Activated Charcoal capsules are another alternative, they help not only with *ahem* potential odour issues, but also at the comfort level. (Caveat - don't use for long periods of time as you could end up nutrient deficient - they absorb all sorts and carry it straight out the bowel). But good as a short term solution!