For those of you who use NoseFrida, how often do you change the filter? With every use? Daily? After each cold is over? DS has a cold with a horrible runny nose and I'm looking at the box and the filters and thinking that I'll go through an awful lot of filters if I have to change it every time it gets used.
OHM born 12/16/11, BAM born 1/10/14, mmc 06/30/15

Re: Users of NoseFrida, I have a (possibly dumb) question
Has your filter ever even gotten yucky? Mine has been totally dry and I don't think anything has ever reached the actual filter. That said...I haven't changed it. I also don't use it too often because I think it makes her little nose inflamed and more mucous-y.