What are allergies ?
Answers
Allergies are reactions caused by the immune system as it responds to environmental substances that are usually harmless to most people. They may occur in response to a range of different material (called allergens), such as food, pollen, dust mites, animals, insect stings, or medicines.
Answer:
A condition in which the immune system reacts abnormally to a foreign substance.
MOST COMMON TYPES
- Drug allergy
An abnormal reaction of the immune system to a medication.
In many cases, the allergic reaction is mild. Severe cases can lead to shock and may be life-threatening
- Food allergy
An unpleasant or dangerous immune system reaction after a certain food is eaten.
The cause of food allergies is unknown. In some cases, allergies experienced during childhood may resolve in adulthood.
- Contact dermatitis
A skin rash caused by contact with a certain substance.
The substance might irritate the skin or trigger an allergic reaction. Some common culprits include soap, cosmetics, fragrances, jewellery and poison ivy.
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