I have considered an eflow but since it was so controversial I thought it was best to wait. My doctor said he would prescribe it but cautioned me that it may not work well. For example, the studies with HS were done with an inhalation time of 15 minutes. The eflow would administer medication faster than that but you may actually need the 15 minutes to get the benefit. I am curious if the people who switched to the eflow feel they get the same benefit? I cough up a lot when doing HS....did anyone see a change in that? I just do not want to take any risks...