Xylomet Paed Nasal Decongestant for Children 15ml is a nasal spray formulated specifically for children to relieve nasal congestion caused by conditions like colds, flu, or allergies. The active ingredient in this decongestant is xylometazoline hydrochloride, which works by constricting the blood vessels in the nasal passages. This helps reduce swelling and allows the nasal airways to open up, making it easier for your child to breathe through their nose.