In case you're new to the forum, here's some more information on this important feature. There is a separate page for SOS posts. You'll see it at the top of the main page of the forum. There are two options to choose from: Pre Respond to Your Own SOS & Post an SOS.
The difference between these options are this: Pre Respond to your own SOS is where you an write a message to yourself about why you quit in the first place and why you must not relapse and smoke again. That will stay there and if you ever feel the need to give yourself a pep-talk, your own words are there for you to read immediately. The Post an SOS option is where you will post a message to let other members know you are struggling to keep your precious quit. People will respond as soon as they see it. You must wait to get responses before doing anything else.
The idea behind both of these emergency options is to replace those overwhelming thoughts about needing to smoke a cigarette with more rational thoughts that this is just your addiction screaming out to be fed once again. Smoking again will only reawaken your addiction to nicotine to it's full strength again and it will destroy all the hard work you have already invested into quitting so it's critical that you do not smoke again - Not One Puff Ever!!
Don't ever be embarrassed to post an SOS! It will very likely save your quit. We are all overwhelmed at times in the early days of our quits - ALL of us! There's no shame in posting an SOS in fact, it's the smartest thing you could possibly do for yourself