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Symptoms
Detailed information on the differences between cold symptoms and symptoms of allergies.
Detailed information on allergy, including symptoms, diagnosis, and treatment
Colds are the most common illness that people get. Colds may be caused by over 200 types of viruses. The most common of these are rhinoviruses ("rhino" refers to the nose).
Detailed information on allergies in children, including information on allergic rhinitis and food allergies