When I am having a severe asthma attack, I self-administer Epinephrine. Sometimes I need more than one shot. I also use my nebulizer before or after a shot. This is not the currently recommended approach but your doctor knows you best. Jkitty's doctor is being more conservative with her.
Every asthmatic is alittle different.
If you are over 40 and are using it for acute asthma, a better and safer approach is nebulized albuterol or several puffs of albuterol through a spacer. That works out to 18 inhalations a day. I've expressed my concern but he says that's just where I am right now. I have no idea. I've expressed my desire to use one but he doesn't seem to think it's necessary.