These medications are used to treat inflammation of the lining of the nose, such as in allergic rhinitis (eg hayfever) and non-allergic rhinitis. They can also be used to help manage nasal polyps.
If you have a blocked ear sensation then the doctor may diagnose eustachian tube dysfunction. This is a condition where the tube that equalises pressure on either side of your ear drum is blocked. As this tube opens into the back of your nose, a steroid nasal spray may help to resolve the problem.
Some steroid sprays can be bought over-the counter. Others require a prescription from a doctor.
They work by reducing swelling and mucus in your nasal passages. This can help with symptoms of congestion, a runny nose, sneezing and itching.
Because of their mode of action, it can take a while to notice their effects, even up to two weeks. So if you are prescribed a spray and do not see immediate results, be patient.
Steroid sprays are generally safe to use in adults. Sometimes they can be used in children, but this should be under the supervision of a doctor.