i disagree with your statment regarding asthma being 75% mental, sure there are links with anxiety and panic disorders, chicken or egg theory, is the patient having anxiety because of acute attack or anxiety causing symptoms similar to asthma, increasing anxiety can decrease the patients ability to cope with a scary situation like this and makes things worse sometimes, they show up to the ER, you listen to their lungs and hear nuthing but wheezing and increased work of breathing and oxygen saturation decreasing(not exactly mental in most severe cases). If you post this on the medical forum here at ask the member by the name of "swatdoc" who i believe is a ER doc or nurse practitioner i am sure he will agree with my statement.
I understand you did not have any problems with taking gear and having asthma, but we do not know how severe the friend of the person who started the threads' asthma is. chances are that the AAS that his friend is taking did not come from a pharmacy, you do not know exactly what kind of oil or solvent it contains, what is actually the chemical it contains could be fake or worse another type of medication vial or ampule ralabeled , and what types of allergies or sensitivities he may have,
some people have severe asthma, some have mild
i do agree that trying to relax during an attack would help, but sometimes it is easier said than done.