The prevalence and incidence of sinus infection, or sinusitis, is increasing and has been estimated to affect 31 million persons in the United States each year.
For the child with persistent or worsening allergy symptoms of more than 2 months' duration, a screening radioallergosorbent test may be initiated.
<p>The prevalence and incidence of sinus infection, or sinusitis, is increasing and has been estimated to affect 31 million persons in the United States each year.</p>