What is allergy and what are the signs / symptoms of allergies?
An allergy there is hypersensitivity to certain substances in the environment. If the body comes into contact with such substances, makes it allergic antibodies. This causes an allergic reaction, which manifests itself in such itching, red spots on the skin, watery eyes, sneezing and or distress. There are different types of allergies: contact allergy (eg nickel allergy), allergy medication (eg antibiotics), food and inhalant allergies.
What is the relationship between allergy, rhinitis and asthma?
In 80% of patients with asthma are also nasal complaints such as chronic rhinitis, nasal congestion and / or sneezing. In 40% of patients with allergic nasal symptoms (rhinitis), there is also complaints of the lower airways. Also in the case of non-allergic asthma are common chronic nasal problems, especially nasal polyps are often seen.