Hi S.,
I have asthma as well as the entire family including the baby. There are some things you can do to prevent attacks, which you will have to learn as you go by watching and catching reactions. Asthma may be brought on by different things, airborne dust, fumes, or allergens, including foods.
I have read to never use bleach, but I do. I use it as recommended and we don't have a problem. The fume that goes in the air will trigger the attacks. So one capful per gallon is fine. The dust and dander the dogs bring in the house also trigger it. They come in, but I have to sweep up the mess of hair daily (which I don't love).
As already mentioned, the preservatives used to keep precut and bagged fruits and salads make me sick too. I believe what they use is MSG, which is in all of our food if you are a label reader. As well, I get a migraine and will also vomit from the additive. I have cut that out of my diet and I haven't had a headache since.
I don't know about your area, but in Vegas there is a lot of dust. I change the AC filters monthly and vacuum all the time. I have pulled all the carpet out of the downstairs area and only have a few small area rugs and then all the rooms are carpeted. I clean with a dyson and you can see all the fine dirt that is in the carpets and floors. As well, the AC filters are always dirty too. With that we haven't had too much problem.
As well, excitement will bring on an attack. Sometimes too much activity in the cold weather, or a good scare. Once the adrenaline gets pumping, there is usually a nice little attack to follow.
As for the meds, I take my meds when ever needed and give my daughter her meds when she needs them too. Yes, an asthma attack is much like suffocating, as I have blacked out by ignoring the signs before. You just simply do not get air/oxygen. What you have to watch for is hearing him wheeze, and seeing his stomach or chest pump to do the work of breathing. If you see that happening, you have waited too long and need to get him medical attention immediately.
Enter your sons meds in this website and then watch for any of these reactions. www.askapatient.com. Not to scare you, but my daughter didn't do well with the Pulmicort. I just ask the doctor to give her something else. With that medicine, she looked like a depressed baby. Crying at the drop of a dime and staring off in space in a trance. At this point, when I see an attack coming on, I am able to give her a few doses of medication over a couple of days and we are not on the meds for a week.
I left off the smoking. The smoke/nicotine on clothes and hands can also trigger an attack. You will hear this every time you take him to emergency. They will ask if anyone smokes in the house or if he is around anyone who smokes. My dad used to smoke in the car with the windows up. I would tell him I couldn't breathe, but he ignored me. Now my husband smokes, but he is only allowed to do so outside. Still the doctors ask him to stop smoking because it is in his clothes, hair, and skin. He has stopped a few times, but only starts back up after about a week.
Best of luck with this.
C.