Severity
and Complications of Allergic Rhinitis
Long-
Term Outlook.
Seasonal
allergic rhinitis tends to diminish as a person ages. In one study over
half of allergic subjects reported that by 40 years of age their
symptoms had decreased and 23% were symptom-free.
Risk
for Asthma. Children
with simple allergic rhinitis appear to be at only slightly greater risk
for asthma than the general population. Studies have reported that about
1% to 10% of children with allergic rhinitis developed asthma later on.
Researchers are finding that cells called eosinophils, which are
produced by the immune system and are an important component in asthma,
are also found in allergic rhinitis patients -- although in far lower
numbers than in asthma patients. Eosinophils cause inflammation in the
airways in the lung and may be a predisposing factor for developing
asthma later on in some patients with allergic rhinitis.
Increased
Risk for Other Allergies.
People with allergic rhinitis may be at higher risk
for other allergies, including potentially serious food or latex
allergies.
Rheumatoid
Arthritis. Interestingly,
research is finding that people with allergic rhinitis are less likely
to have rheumatoid arthritis and vice versa. Patients who have both
conditions tend to have less severe arthritic symptoms. Experts suggest
that the immune response in one disorder may tend to neutralize the
other.
Some children with severe allergies may have more
behavioral problems than those without allergies according to some
research. One study suggested that an underlying genetic defect may
predispose some children to both dep ression or aggression and
allergies.
Complications
of allergic
Rhinitis
Year-long allergic rhinitis is associated with ear
infections (acute otitis media). Chronic rhinitis can cause headaches
and also affect a child's sleep, concentration, hearing, appetite, and
growth. Structural abnormalities or chronic nasal obstruction from
year-round allergies can even affect a child's appearance. If a child
can only breathe through the mouth, the continual force of air passing
through the oral cavity can change the developing soft bones in the
face, possibly causing an elongated face and an overbite from teeth
coming in at an abnormal angle.
Some children with severe allergies may have more
behavioral problems than those without allergies according to some
research. One study suggested that an underlying genetic defect may
predispose some children to both dep ression or aggression and
allergies.