Allergic reactions
Definition
Allergic reactions are sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract.
Allergic Reactions and Chemotherapy
Includes: hypersensitivity, anaphylaxis, drug reaction
What is an allergic reaction and is chemotherapy related?
Allergic Reactions
Overview, Causes, & Risk Factors
Symptoms & Signs
Diagnosis & Tests
Prevention & Expectations
Treatment & Monitoring
Attribution ...
Allergic reactions Related Conditions
Seasonal allergies
Sinusitis
Insect stings and bites ...
Allergic reactions Treatment
Review Date: 04/28/2008
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Stuart I.
Allergic reactions are sensitivities to substances, called allergens, that are contacted through the skin, inhaled into the lungs, swallowed, or injected.
Considerations ...
Allergic reactions are common and unpredictable. The seriousness of the allergic reaction caused by a certain medicine will vary.
Allergies to insect venom.
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Allergic Reactions
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Allergic Reactions
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Although mast cells are found in connective tissue and basophils are a type of white blood cell, they have one thing in common to the allergy sufferer.
Allergic reactions
Systemic (body-wide) reactions are allergic responses and occur in people who have developed antibodies against the insect venom from a prior exposure. It is estimated that between 0.
Serious Allergic Reactions (Anaphylaxis)
KidsHealth> Teens> Diseases & Conditions> Allergies, Asthma & the Immune System> Serious Allergic Reactions (Anaphylaxis)
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Allergic reactions are fairly common. Most reactions happen soon after contact with an allergen. An allergen is a trigger that causes the reaction after touching a certain part of the body.
The blood may be exposed from an injection.
Not all allergic reactions happen the same way. Some allergy symptoms occur immediately after exposure to an allergen, while others take hours or days to occur.
Epi pens for allergic reactions
The technical name for an epi pen is an epinephrine autoinjector. Epi pen is simply the trade name which is used for the medical device but there are other trade names for these deviecs as well.
Because the patient may be too sick to provide this information, a family member, friend, co-worker or school nurse will need to help. People with a history of severe allergic reactions should consider wearing a medical alert identification necklace ...
Allergic reactions - herbs are sometimes burnt over the skin to create specific points of heat near acupuncture points. Herbs are as powerful as pharmaceutical drugs and need to be treated with the same respect and caution.
Allergic Reactions
Some people have allergic reactions to the blood given during transfusions. This can happen even when the blood given is the right blood type.
Allergic reactions can be mild or severe. Symptoms can include: ...
Allergic reactions may result in the following:
rhinitis: nasal stuffiness, sneezing, nasal itching, nasal discharge, itching in ears or roof of mouth
allergic conjunctivitis: red, itchy, watery eyes
atopic dermatitis: red, itchy, dry skin ...
Allergic reactions. Always let your radiologist know if you have any history of allergies or an allergy to contrast material. Reactions to contrast are uncommon.
Allergic reactions
Some people develop angio-oedema as part of an allergic reaction. Something triggers the immune system, which triggers mast cells to release histamine. In effect, it is a bit like the immune system over-reacting. For example: ...
Allergic reactions. One possible cause is an allergy, either to contraceptive spermicides or to latex in condoms.
Bacterial overgrowth.
Allergic reactions to medication
Hives are raised red welts of various size on the surface of the skin, often itchy, which come and go. Also called urticaria, hives is usually part of an allergic reaction to drugs or food.
Allergic reactions get worse with each subsequent exposure
There's no predicting how a person might react after each exposure to an allergen. The reaction may be exactly the same as before, more or less severe.
Photoallergic reactions
Photoallergic reactions are cell-mediated immune responses in which the antigen is a light-activated drug.
Severe allergic reactions (anaphylaxis). You can have serious allergic reactions to some medications as well as to certain foods and insect venom.
Allergic reactions in which the trachea or throat swell closed, including allergic reactions to a bee sting, peanuts, antibiotics (penicillin), and blood pressure medications (ACE inhibitors)
Chemical burns and reactions
Croup ...
Allergic reactions. Signs of allergic reaction can include trouble breathing; swelling or closing of the throat; swollen face, tongue, or lips; or hives.
Allergic reactions occur when an individual's immune system becomes sensitized to a substance (sensitization phase) and then reacts when again exposed to that substance (elicitation phase).
Allergic reactions to latex condoms are rare, but they do occur. (Changing to condoms made of polyurethane or animal membranes may help.) ...
Allergic reactions are very complex and can change over time. Too many people make assumptions on what they or their children are allergic to without receiving proper testing.
Allergic reactions -- asthma, hypersensitivity pneumonitis, or eosinophilic pneumonia
Alveolar hemorrhage (bleeding into the lung air sacks)
Bronchitis
Drug-induced lupus erythematosus
Granulomatous lung disease -- a type of tumor in the lungs ...
Allergic reactions to insect stings can be so severe that death may occur within the few minutes following a sting.
Allergic reactions can be triggered by foods, medications, exercise, latex, insect stings, or unknown triggers, and can cause a sudden, potentially life-threatening allergic reaction called anaphylaxis.
Allergic reactions due to the mismatching of blood types can occur but are very rare.
Certain infections, such as hepatitis or HIV , can be passed on during blood transfusions, but this is very rare.
Allergic reactions require emergency medical help if there is collapse and/or difficulty breathing.
Allergic reactions to medication
Antibodies
Reviewed last on: 4/28/2008
David C. Dugdale, III., MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Stuart I.
Allergic reactions, skin inflammation, and stomach upset have been reported due to garlic. Bad breath is a notorious accompaniment. Studies in rats have shown decreases in male rats' ability to make sperm cells.
Allergic reactions occur in response to a variety of substances, including environmental agents, food, medication, venom and contact agents. Common inhaled allergens are pollen from trees, grasses and weeds which provoke seasonal allergy symptoms.
Allergic reactions to penicillin or streptomycin
Alloantigens, including heart transplant rejection
Autoantigens, including Chagas' disease, scleroderma, or lupus
Risk Factors TOP ...
Allergic reactions
Hives (urticaria) are raised, red, itchy welts, seen here on the chest. The majority of urticaria develop as a result of allergic reactions.
allergic reactions: this means exaggerated reactions that do not happen in normal individuals.
As described above, local reactions usually happen on the skin, while the latter two can affect any organ systems.
Allergic reactions that are caused by dust mites, animal dander, cockroaches or spores from indoor mold or fungi and bring about year-round (perennial) hay fever symptoms.
Allergic reactions can be serious and even fatal. If your child has acute symptoms in addition to the rash, such as wheezing, difficulty breathing, tightness in the throat or chest, fainting, nausea, vomiting, or other serious symptoms, ...
Allergic reactions to foods and environmental chemicals have been reported to trigger certain arrhythmias. Ask your doctor for help identifying these sensitivities.
Uncover your allergies ...
Allergic reactions are an immune response to allergen exposure that can range in risk from mild to life-threatening. Learn about allergic reaction causes, symptoms, tests, treatment and prevention. See more »
Amputation - Traumatic ...
Allergic reactions to insect stings result from an overreaction of a child's immune system to the venom injected by the insect.
Allergic reactions
Vocal cord dysfunction often mimics asthma, so many patients with vocal cord dysfunction are incorrectly given drugs for asthma but do not respond.
Allergic reactions, chemicals in certain foods, insect stings, sunlight exposure, or medicines can all cause histamine release. Sometimes it's impossible to find out exactly why hives have formed.
Allergic reactions may include mild nausea and intestinal cramps, diarrhea, or swelling larger than 2 inches (5 centimeters) in diameter at the site. See your doctor promptly if you experience any of these signs and symptoms.
Allergic reactions vary a lot and can begin immediately after you eat the food or start several hours later. The symptoms below are typical of food allergy.
allergic reactions, such as itching and flushing
gut symptoms, such as vomiting and diarrhoea
bone symptoms, such as thinning of the bones
changes in mood, headaches and episodes of severe fatigue (tiredness) ...
Allergic reactions can be serious and even fatal.
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allergic reactions
You can reduce the side-effects by rinsing your mouth out and gargling with water after using your inhaler. You should not swallow this water.
Inhaled steroids ...
Allergic reactions and skin irritation may occur in aromatherapists or in patients, especially when essential oils are in contact with the skin for long periods of time.
Allergic reactions to radiopharmaceuticals may occur but are extremely rare and are usually mild.
The allergic reactions to poison ivy, oak, and sumac occur when sensitized people come in contact with urushiol oil. This oil is found in the roots, stems, leaves, and fruit of the plant. This oil is released if the plant is damaged or bruised.
Some allergic reactions are emergencies because they are life threatening. They require immediate medical treatment. If your hives appeared suddenly and spread quickly, you need emergency treatment.
Most allergic reactions are minor, such as a rash from poison ivy, mosquito or other bug bites, or sneezing from hay fever. The type of reaction depends on the person's immune system response, which is sometimes unpredictable.
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Serious allergic reactions are rare.
These discomforts are usually temporary but may last for a few days. In very few cases, side effects may include: fever, dizziness and/or nausea. Anaphylactic reactions requiring emergent care are rare.
 See also: Symptom, Prevention, Infections, Fever, Surgery
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