Doing CS several times a day works better than just one big dose all at once. Little doses overtime we have found works the best. Hope she gets better! My 1yr old grand son had the beginings of the flu so I set up the ultrasonic nebulizer aqnd did a treatment myself playing with him on the vapor comming out, so I was able to get him to breathe in the vapor. Did the treatment 3 times in a day, next morning no flu like symptoms! He's been fine since.