PLease help, farting problem?

Please help me i am farting a lot right now. i need to go to work, but they are so stinky everywhere i go smells like a sewer. I can't call out and say "I keep farting and it smells really bad so I cant come in". I tried holding in farts for a while but then i let out one that was like 20 seconds long. It also smelled very bad. I tried to fix it by drinking a mountain dew, but this did not help.