With the NUK nasal decongestant you can free your baby's stuffy nose in a safe and gentle way: simply squeeze the bulb of the decongestant to expel the air and place the nozzle in one of your baby's nostrils, keeping the other closed with the your finger. Gradually release the pressure you put on the bulb and your baby's nose will begin to unclog by expelling the mucus. The wide safety opening prevents the decongestant from getting too deep into your baby's nose.