Types of allergy and there symptoms


Allergies are hypersensitive immune responses to substances that either enter or come in contact with the body, like pet dander, pollen or bee venom. A substance that causes an allergic reaction is called an “allergen”. Allergens can be found in food, drinks or the atmosphere.

Types of Allergy

Allergy is a multi-organ disease, affecting approximately one in three of the population in the UK at some time in their lives.  Each year the numbers are increasing by 5% with as many as half of all those affected being children.

  • Severe Allergy and Anaphylaxis
  • Respiratory Allergy
  • Food Allergy
  • Skin Allergy
  • Rubber Latex Allergy
  • Drug Allergy
  • Allergy to Wasp and Bee Stings

Signs and symptoms of allergies?

A symptom are a few things the patient feels and describes, whereas an indication will be detected by others too. Pain is a symptom and a rash is a sign.

When someone with an allergy comes into contact with an allergen, the allergic reaction is not immediate. The immune system gradually builds up sensitivity to the substance before overreacting to it.

The immune system needs time to recognize and remember the allergen. Because it becomes sensitive to it, it starts creating antibodies to attack it – this method is called sensitization.

Sensitization can take from a few days to several years. In several cases the sensitization process is not completed and therefore the patient experiences some symptoms but never a full allergy.

Common symptoms of an allergic reaction to inhaled or skin allergens include:

  • Itchy, watery eyes
  • Sneezing
  • Itchy, runny nose
  • Rashes
  • Feeling tired or sick
  • Hives (a rash with raised red patches)

Other exposures will cause different allergic reactions:

  • Food allergies. An allergic reaction to food allergens can also cause abdomen cramps, vomiting, or diarrhea.
  • Insect stings. The allergic reaction to a sting from a bee or different insect causes local swelling, redness, and pain.

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