Allergy Testing

Allergy Testing
Immediate Allergies
Delayed Allergies
Dairy Allergy Testing
Allergy Symptoms Reference

Blood Testing

Normal vs. Healthy Ranges
Vitamin D Testing
Blood Testing

Digestive and Gastrointestinal Testing

Stool Blood Testing
Digestive Absorption Testing

Gluten Testing

Celiac Gluten Difference
Gluten Testing
Celiac Disease Testing
Gluten-Free Diet

Hormone Testing

Male Hormone Testing
Female Hormone Testing

Neurotransmitter Testing

Neurotransmitter Testing

Toxic Metals Testing

Toxic Metals Testing


There are 4 types of Allergies:

  • Type I allergies, which are Immediate Allergies

  • Types II, III, and IV, which are Delayed Allergies

For your convenience, the allergy testing and nutrition counseling service by our Functional Medicine Doctors at Chicago Natural Health Care in Chicago have put together this handy reference detailing each of these 4 types of allergies, including not only the common symptoms associated with each but also common causes and conditions typically involving each allergy type.

TYPE I – Triggers the production of histamine which can produce a wide array of symptoms ranging from mild to severe, as well as an assortment of secondary symptoms.

Symptoms commonly include:

  • MILD 
    • sneezing
    • coughing
    • runny nose
    • congestion
    • itchy and watery eyes
    • sore throat
    • hives
    • cramps
    • nausea and vomiting
    • shortness of breath
    • anaphylactic shock
    • swelling of the tongue, lips, and throat
    • suffocation
    • death
    • fatigue
    • muscle and joint pain
    • headaches
    • depression and other mood disorders
    • dizziness
    • gastrointestinal upset.

Causes commonly include:

  • inhalation of an allergen
  • ingestion of an allergen
  • physical contact with an allergen

Conditions that may involve Type I allergic reactions include:

  • rhinitis (hay fever)
  • allergic conjunctivitis
  • asthma
  • eczema

TYPE II – Reactive Antibody – Triggers an immune response similar to that of a bacteria, virus or another pathogen.

Symptoms commonly include:

  • cell and tissue damage

Causes commonly include:

  • hypersensitivity to drugs, like Penicillin

Conditions that may involve Type II delayed allergies include:

  • hyperacute graft rejection of an organ transplant
  • Hashimoto’s thyroiditis
  • Coombs’-positive hemolytic anemias
  • Goodpasture’s syndrome (or anti-glomerular basement membrane disease)

TYPE III – Immune Complex:  This is similar to a Type II reaction, except it may be triggered by either an external antigen (i.e. a foreign substance) or if the body starts to attack its own cells or tissues.

Symptoms can commonly include:

  • inflammation
  • hives
  • rash
  • painful joints

Causes commonly include:

  • hypersensitivity to antibiotics or other medications

Conditions that may involve Type III delayed allergies include:

  • cryoglobulinemia
  • rheumatoid arthritis
  • serum sickness
  • systemic lupus erythematosus
  • leukocytoclastic vasculitis
  • bronchopulmonary aspergillosis
  • hypersensitivity pneumonitis
  • many types of glomerulonephritis

TYPE IV – T-Cell Mediated: A hypersensitivity that only occurs when the antigen comes in direct contact with the skin. Hence it’s often known as a “Contact Allergy”.

Symptoms commonly include:

  • inflammation
  • hives
  • rash

Causes commonly include:

  • poison ivy
  • latex
  • chemicals
  • physical contact with food (not ingestion)

Conditions that may involve Type IV delayed allergies include:

  • tuberculosis
  • hypersensitivity pneumonitis
  • allograft rejection

Feeling Well and Being Healthy is within Reach! Our Functional Medicine experts are here to make a long-term success with our patients. 

Call Chicago Natural Health Care today at 773.418.6877 to set up allergy testing in our Chicago office today. This can be followed up by individualized nutrition counseling with one of our Chicago Functional Medicine Doctors.

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