- Effect on growth. The major concern for children is whether nasal steroids, like other forms of steroids, will adversely affect growth. Studies report either a temporary and slight (about half an inch) early effect on growth or no effect at all.
- Effect on eyes. Glaucoma is a known side effect of oral steroids. Some ophthalmologists have observed higher pressure in the eye (a sign of glaucoma) in some patients taking nasal steroid sprays. (Studies have found no increased risk for cataracts in young people who have taken intranasal steroids). The eye pressure appears to return to normal after stopping the steroid, but periodic eye examinations are advised.
- Use during pregnancy. Steroids appear to be safe during pregnancy, but pregnant women should talk to their doctor about other options before taking them.
- Nasal passage injury. Steroid sprays may injure the nasal septum (the bony area that separates the nasal passage) if the spray is directed onto it. This complication is very rare.
- Lower resistance to infection. People with any infectious disease or injury in the nose should not take these drugs until the disease or wound has been treated and cured.
Cromolyn
Cromolyn serves as both an anti-inflammatory drug and a specific blocker for allergens. The standard cromolyn nasal spray (Nasalcrom) is not as effective as steroid nasal sprays but does work well for many people with mild allergies. It is one of the preferred first-line therapies for pregnant women with mild allergic rhinitis. It may take up to 3 weeks to experience full benefit.
Side Effects. Cromolyn has no major side effects, but minor ones include nasal congestion, coughing, sneezing, wheezing, nausea, nosebleeds, and dry throat. The spray can cause burning or irritation.
Leukotriene-Antagonists
Leukotriene-antagonists are oral drugs that block leukotrienes, powerful immune system factors that are important in causing airway constriction and mucus production in allergy-related asthma. Leukotriene-antagonists include zafirlukast (Accolate), montelukast (Singulair), zileuton (Ziflo), and pranlukast (Ultair, Onon). These drugs are mainly used to treat asthma. Montelukast was approved in 2003 to treat seasonal allergies, and in 2005 to treat indoor allergies.
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