Nasacort
"My son & I have year round allergies, and my son's asthma (he's 14) is exacerbated by nasal congestion. I tried everything! Some stuff worked ok, some not at all, but this product is like a miracle.  We don't suffer AT ALL from allergies now, and my son's asthma is improved as a result as well. Try it and see. I bet you'll love it."