Following an asthma flare up I've tried several inhalers (none of them worked) and I noticed something strange with the ones that use dry powder. For example, two weeks ago, I was having what seemed like an exacerbation (sore and tight chest, difficulty breathing) and ventolin didn't do much so I decided I would try Bricanyl (which is under the form of dry powder) and I took one puff of it. Immediately after, the inflammation in my lungs increased and I had a very strong itching sensation located in my upper chest (trachea maybe ?) and it made my asthma worse (it lasted the whole night and took several days to settle). I know that it's not an allergic reaction to the drug because I use Bricanyl everyday in the form of nebs and it doesn't cause me any trouble. A few months ago I had the same problem with Fostair which was also dry powder and immediately after taking a puff I felt like an irritation and the tight chest was becoming worse.
Back then I blamed it on the inhaler and I stopped taking it but now I'm starting to think that for some reason, dry powder inhalers make my symptoms worse and seem to irritate my airways even more. I find it strange as I see that a lot of people with asthma use these inhalers and for them it doesn't cause any problems. So, are there other people who have experienced something similar with these dry powder inhalers ? And does anyone have any idea on why this happens ?