If you can stand it, use a small amount of spearmint, it will help break up the foam a bit,
and hopefully help the gas pass a bit easier. Mint
mentos will certainly work (similar to the mentos in the soda trick). It may accellerate the gas removal, but when the gas is removed, may give further relief for a time. Spearmint leaf and suchlike would as well be a good idea.
This is a shot in the dark, but you may wish to have yourself checked for a blood-level or mucal candidiasis.