not chewing food slowly and thoroughly – swallowing large pieces of food causes you to swallow more air. Try eating easily digestable, well cooked food.  Avoidoily foods, potatoes etc which are difficult to digest. Limit intake of foods like lentils,  cabbage,  cucumber which causes formation of gas. Have adequate water.  Eat at regular timings. Take bio-combination 25 tablets available at homoeopathic stores as and when required. If problem persists consult nearby homoeopathic physician to prevent frequent recurrence of the problem. Better medication can be given by enquiring into other details of yours.