If you still pass gas it isn't that dangerous. When you stop farting completely that means a complete obstruction and that you need to go to the doctor for.You might try an osmotic laxative (although that works from the top down so you might do that for a couple of days once you do go even if you use it to help you go.Fastest results usually is an enema. water from the bottom up gets the stuck stool at the end.Some people like stimulatory laxatives but they can make some people cramp up a lot, but that is another short term option.Fiber and osmotics tend to be better long term options if you have these issues regularly.