Treatments for trapped wind
There are a number of products which relieve trapped wind which you can buy from your pharmacy or supermarket. Ask for an anti-flatulent that contains simethicone. The active ingredient (simethicone) breaks down the tiny bubbles of gas that cause the bloated feeling and gurgling noises of trapped wind, forming fewer, larger bubbles which are more easily expelled or absorbed in the intestine.
Simethicone is non-systemic, which means it isn't absorbed into your blood stream, making it suitable to take even during pregnancy.