Is it reasonable to expect a 3.9 year old to sit in a soundproof booth with headphones and button

[VeniVidiVickiQV]

In order to carry out a hearing test?

You could also try this treatment. A lady local to me will do it on children, she lies them on her lap and to get them to be still they watch a favourite DVD/TV

hopi ear candles

Thank you. I might look into nasal balloons. Not sure about the candles for her, might consider it for myself though!