ALLERGIES
Reactions occur when a person's immune system reacts to normally
harmless substances in the environment. A substance that causes a
reaction is called an allergen
The most common allergens include dust mites, molds, pollens,
animal dander, cockroaches, peanuts, milk, eggs, latex, and penicillin.
The dust mite is the most common cause of allergies.
Mild allergies like hay fever are very common in the human
population and cause symptoms such as red eyes, itchiness, and runny
nose, eczema, hives, or an asthma attack.
Food Allergies-what can cause effects like vomiting, stomach upset
and hives.
Seasonal Allergies what can cause as an example effects like sniffling
and sneezing
Pet Allergies what cause coughing red itchy eyes runny nose and
sneezing
As an example from real life there are some people who also have
somewhat weird allergies like an allergie for exercise ,money, water or
sunlight.
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