There are no stupid questions. And if my airway were obstructed, I certainly would prefer that you had taken the time to ask

. If not, you wouldn't be the only red face!
It is actually a very simple and complicated answer...
It depends on what the problem is with the airway.
Are they choking? Remove the object, do the Heimlich, get them to where they can get a trach or suction on them.
Have they just stopped breathing? Do rescue breathing, bag them, get them vented, whatever it takes.
Is it an asthma attack, or are they anaphylactic? Get them epinephrine, steroids, or their rescue inhaler (if they have enough air to take it in).
Bottom line is, no matter what it is, you have to keep the oxygen flowing to the brain before you move on to anything else. It sounds obvious, but when you have someone just 'falling apart' on you, you really do have to prioritize that specifically, and very quickly.
Good luck, and keep asking questions

You may be my nurse some day, and I want you to know!
Smiles,
Mel