How Do Intranasal Steroids Work?

How steroid nasal sprays work. Steroids are a man-made version of hormones normally produced by the adrenal glands, which are 2 small glands above the kidneys. When sprayed into the nose, steroids reduce inflammation (swelling). This can help relieve symptoms such as sneezing and a runny or blocked nose.

How long does it take for intranasal steroids to work?

Intranasal corticosteroids take time to work. They may begin to give relief to allergy symptoms after about six to 10 hours, but full relief may not be obtained for three to six weeks with daily use.

Do steroid nasal sprays work immediately?

Steroid sprays start working almost immediately but don't provide their full benefits for about 2 to 4 weeks. This makes steroid sprays better for long-term, preventative use. Antihistamine nasal sprays work faster than steroid sprays and are also quite effective.