If you are referring to the Ventolin you mentioned in your other thread, it is NOT a steroid inhaler. It is Albuterol and works quickly, not 12-24 hours later. Now if you were also prescribed a steroid based inhaler, like Symbicort, then yes, it can have that type of action to help hours later. Have you been prescribed a new inhaler? If so, what is the name?

Your asthma may have shown up at the same time as your other autonomic symptoms but it would be caused by the underlining disorder, not the autonomic dysfunction/neuropathy. Adult onset asthma is commonly caused by autoimmune conditions or other systemic conditions. Autonomic neuropathy can can breathing problems like central apnea, but it would not 'cause' asthma itself. Sorry to hear you have yet another problem to deal with in your already complex medical history.

As others have already said on your other thread, Ventolin is for acute asthma attacks (right when the attack is happening). A steroid based medication like Symbicort is for long term management of asthma...to be used daily to help prevent asthma attacks. Of course, you would still have your Ventolin to use just in case you have an acute attack, but with Symbicort, it should not be needed as often.