Very little amount of air is coming from my anus . i have only small internal piles. it is creating a very bad odour and after sitting this air comes more frequently?

It is not entirely clear what your question is. There are over the counter treatments for gas so you could ask your pharmacist for recommendations. You should keep track of what foods you are eating that tend to make the gas worse and then try to avoid these foods. See a GI doctor for further recommendations, especially if the over the counter remedies don’t help. Best of luck to you!