A caffeine allergy is an adverse reaction by the body's immune system to caffeine or caffeine-containing products. The type and severity of symptoms can vary amongst patients.
A person becomes allergic to caffeine when his caffeine intake increases and so does his tolerance to caffeine. As a result, excessive caffeine in the body can bring about allergic reactions to caffeine. When this happens even a small amount of caffeine is rapidly absorbed by the nerves and organs in the body and trigger the disorder.
Caffeine allergy or intolerance to caffeine affects many people worldwide. However, many are not aware of this condition and may blame the symptoms of caffeine allergy to other factors.
 Why should I be aware of this?
Though drinking tea and coffee is a way of life for most, too much caffeine consumption can lead to health problems and make us allergic to it. Certain medications can also interact with caffeine. Some prescription heartburn medications warn you not to consume caffeine within an hour of taking it, and some heart and cancer patients must not consume caffeine at all.
 How does it affect me?
Caffeine allergy unlike other forms of allergies, adversely affects the mind rather than the body, though there are symptoms like chest pains, hyperventilation, heart palpitations, tightness of the throat and difficulty breathing.
To the allergic, caffeine targets cells and neurons directly, forcing the body to release excessive amounts of chemicals such as dopamine, serotonin and adrenaline causing repulsive reactions. Where on one hand these chemicals help a person stay alert, active and in high spirits, on excessive levels, it results to repulsive behavior.
 All about caffeine allergy
Caffeine is a natural diuretic which means it pulls fluid out of your system. When a person is exposed to caffeine for prolonged periods then there is an increased chance for developing a tolerance and an allergy to the substance. For a person with caffeine allergy, caffeine can not properly metabolize and is rapidly absorbed by all the organs and distributed into intracellular compartments and extra cellular water.
Caffeine allergy symptoms range from a minor rash to life threatening seizures. The severity of the reaction depends on what the person is actually allergic to and to what extent a person is allergic. Some of the reactions associated with caffeine allergies include difficulty breathing, shock, tongue, and facial swelling.
- Tingle in the mouth
One of the first symptoms is a tingling sensation in the mouth resembling a cold sore, or canker sore. Then, the tingling spot will turn into an open lesion. In extreme cases of sensitivity the sores will then spread, multiply and become large lesions in your mouth. The sores can occur at any area in the mouth where the caffeinated product has touched.
- Swelling in the throat
Two other symptoms are coughing and having difficulty swallowing while drinking caffeinated products.. There can be a feeling of a thickening in the throat. It's a similar feeling to the early stages of a sore throat associated with a common cold or flu.
- Itchy Skin
After having caffeinated products the skin will feel itchy, almost as if you had dry skin.
If you get any of these above symptoms, you need to seek medical attention.
 Source of caffeine which cause caffeine allergy
Symptoms of person with severe caffeine allergy are such that a person can be mistaken as depression, obsessive compulsive, schizophrenia, attention deficit order (ADD), manic depressive or bipolar disorder. The symptoms may range from delusions, mania, frantic behavior and other symptoms that closely resembles mental disorders.
- Consumption of caffeine containing beverages goes back more than 6,000 years to the use of tea in China as early as 4700 B.C.
- More than 1,000 over the counter drugs, for headache, pain relief, cold, allergy, diuretics, weight-control, stay-awake medications, show caffeine as a listed ingredient.
- Caffeine Allergy
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