Gas is caused due to a variety of reasons, and it is not necessary that food is the only one. If you are concentrating on eating a lot of salad, it is essential for you to know what raw vegetables to avoid, since a lot of vegetables have the tendency to cause gas when consumed raw. Among the commonest culprits that cause gas are cabbage, cauliflower, peas, potatoes, corn and sprouts. You need to check if you are eating any of these in any form and skip them in order to escape from the problem of gas.
It is also possible that you are unable to digest all that you eat, which could be a reason for gas. If your problem is infrequent, you should know that this is not entirely abnormal. Most human beings tend to suffer from gas at some point, and quite regularly. You can also include a fixed routine of exercise in order to help you get rid of the problem. 30 minutes of daily walking will help tremendously in getting rid of gas as well as indigestion.
There is no scientific or medical evidence to prove that gas causes itchiness in the body. It would be better to look elsewhere for the cause of the itchiness.
answered by G M