Oral allergy syndrome (OAS) is a well-recognized but little-known condition. When you eat certain foods that react to pollen to which you are allergic, it is characterized by a burning sensation or pain and swelling in the mouth. Interestingly, the specific food that produces this reaction is well established to react with certain tree, grass or weed pollen, house dust mites or latex. There are common groups of foods that cluster with specific nasal allergies. For example, ragweed allergies usually cause an oral or intestinal reaction after eating watermelon or banana but not usually other foods. Like latex allergy, birch tree pollen is commonly associated with numerous food reactions. The explanation for these reactions includes similarities in protein structure as well as some chemicals in the diet.
Although this reaction is well documented in the allergy literature, it is not commonly identified or diagnosed by most doctors, including some allergists and many gastroenterologists. Various allergy web sites include a list of common foods associated with certain pollen, dust mites, or latex. However, a comprehensive list that is easy to read or interpret is difficult to find. Also, some pollen names or common links between a pollen group and a food group can be confusing.
OAS should be easy to identify in its classic form. After eating food associated with pollen, to which you have allergies, you experience an immediate burning sensation in the mouth or throat with or without swelling. However, it is generally believed that in medicine frequently, the symptoms do not appear “classic” or typical in a particular person. Doctors are taught the words in another way, the words “patients do not read textbooks”. So, you may experience a variety of reactions such as a sore or stiff throat, a sore throat when swallowing, a lump in the throat or a feeling of difficulty swallowing, but do not make a connection with what you have eaten or what is happening to you.
You or your doctor may misinterpret your symptoms. People have always believed that it happened because they suffocated on food that was chewed badly, swallowed too fast, or eaten or drunk when it was too hot or too cold. In general, acid reflux is thought to be the cause of esophageal (esophageal) disorder, especially with hepatic hernia. Acid reflux can cause esophageal infections called tightness or ringing, which can cause a food-clinging sensation, but this is usually associated with symptoms of heartburn or food clots that require a fairy endoscopy or space examination later. At other times, especially if it occurs in an older person, a neurological condition such as stroke or Parkinson’s disease is blamed. Sometimes doctors determine if your symptoms are due to a nervous reaction or neurosis that was historically called globus hysterics. The hysterics part of the term is usually put into short-term globus or globus sensation these days, especially since it has not been proven to be due to a mental problem. However, Globus can be diagnosed, if your complaint is that if you feel a lump in your throat and the ‘assessment’ does not turn anything like that, even if the OAS is not considered or excluded.
Abnormal conditions that have recently been recognized in the field of gastroenterology (diseases of the stomach and intestines) that relate to the type of OAS or are called eosinophilic esophagitis (EE) or allergic esophagitis. It was previously described in pediatrics but now it occurs in adults. Classically described in adolescent boys and young men who presented with food adhering episodes without heartburn or acid reflux symptoms, it is associated with a strange appearance of the esophagus on endoscopy (mild space examination of the upper gastrointestinal tract). The doctor who does the space sees that the esophagus looks like a cat’s esophagus. It looks like it has rings (cats have cartilage in their esophagus, we don’t) and this is known as “ringed esophagus” or esophageal felinization. Microscopic signs of allergy are noted on such rinsed or felinized appearing esophageal biopsies (they are also often narrowed as a result of food sticking). The lining shows numerous eosinophils, appearing reddish pink with white blood cells, characteristic of the allergic condition. These eosinophils release chemicals such as histamine that stimulate inflammation, pain, and tissue damage.
Food allergies are commonly found in EE, although sometimes the detection of food allergies by conventional skin tests or IgE blood test is negative. Treatment is to avoid known food allergens and swallowed nasal steroid sprays that are designed for nasal use for nasal allergies. Although not yet specifically proven, eosinophilic esophagitis (EE) can be a form of OAS.
Eosinophilic gastroenteritis and eosinophilic or allergic colitis also exist and can be diagnosed by biopsy of the stomach, small intestine, and intestine. Allergic colitis is more common in infants who are allergic to cow’s milk protein. It represents colic type abdominal pain, diarrhea, weight loss and bloody diarrhea in infants on cow’s milk formula or sometimes in breastfed infants whose mother drinks cow’s milk.
Allergic gastroenteritis occurs in any age group, commonly presented as abdominal pain, with or without bowel obstruction or perforation; Diarrhea; Anemia; Weight loss; And microscopic bleeding in the intestines, also known as occult blood in the stool. Such bleeding can only be detected by special stool chemical tests, known as fecal occult blood tests (FOBT) or stool Guaac test.
At least some people with food intolerance who do not consider limited dietary diary information, blood tests, biopsy, or allergy testing may have a form of OAS. In other words, the presence of a known pollen or latex allergy can predict food reactions known to surpass the reaction with an allergy recorded in the OAS. However, instead of the classic oral allergy syndrome symptoms, other stomach and intestinal symptoms or even gastrointestinal symptoms can result.
This concept can be supported by a detailed examination of individuals for food intolerance. People with known pollen or latex allergies, any known food allergies or intolerances, including gluten intolerance (celiac disease) and casein intolerance, are asked to complete a series of symptom assessments and severity rating scales followed by a strict elimination diet. Monitoring for this recurrence is followed by re-evaluating the symptom response when introducing food once in a while.
This type of analysis is the basis of the Neopaleo Specific Diet. In the near future individuals will be available at online screening for food intolerance with symptom assessments and special dietary recommendations for individuals. www.thefooddoc.com. Diet Online Diet Feature Diary will also be available. A simple table showing common foods that can cross-react in a wide range of pollen allergens and latex allergens is available. Food intolerance is commonly identified as a common cause of illness and symptoms. Finding any possible links to what you are eating and how you feel may be more helpful in person with special dietary recommendations and a diet eliminated.
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