Rugby Mometasone Furoate 50 mcg Nasal Spray contains glucocorticoid for 24-hour relief from nasal congestion, runny nose, sneezing, and itchy nose. Read the insert inside the package for instructions on how to prime the bottle, use the spray, and clean the nozzle. The growth rate of some children may be slower when using this product. Children should use it for the shortest amount of time necessary to achieve symptom relief. Talk to your child's doctor if your child needs to use the spray for longer than 2 months a year.