If not asked for, I tend to not give. Just me.
"Used an inhaler once..." brings a lot of questions to my mind, but the biggest is "Why?" You answered that with "she had the flu."
I had pneumonia recently...the DR gave me the only inhaler I've ever used...some sort of steroidal thingie...REALLY helped with my breathing while I took my daily handful of pills to beat that nasty bug.
Never had it after that. Now...were I an candidate, would that be a DQ? I can't think of any reason because it was a medicine prescribed to treat an illness (not a chronic condition).
Be honest but don't be too open. Sounds deceptive and I assure you I don't mean it that way, but too many candidates/parents "volunteer a ton" and some of it turns out to be a "not really" but can cause angst.
Steve
USAFA ALO
USAFA '83