Doctor insights on:
Skin Allergy Testing Procedure
Yes: but only when the proper precautions are taken. For example, one should be tested to the prick method first before intradermal skin testing is done if the prick test was negative. Even then , anaphylaxis may rarely occur. Is it 100% safe? Nothing is. Is it 99% safe, yes when done by a board certified allergist/ENT. ...Read more
Allergies can be identified by allergy tests. The best allergy test is a skin test. It is safe and reliable. The next best allergy test is a blood test - less reliable than skin tests but also safe. If we are looking into food allergy then a challenge test is very reliable but ...Read more
Nothing is perfect: No test is 100% reliable - neither skin testing nor blood testing. That's why allergists try to order relevant tests selected based on a comprehensive medical history and physical examination. The results must be interpreted & used as clues to a solution. They're not an answer in themselves. I'm frequently called by doctors who order allergy tests & then want me interpret them over the phone. ...Read moreSee 2 more doctor answers
Limited use: Skin testing for allergy is of limited usefulness even when a person does not have dermatographism. The history is the key; skin testing can be confirmatory. Especially, don't conclude that you must severely limit what you do and eat, and where you go, based on skin testing. It's just one piece of information that helps guide decisions. ...Read more
Prick testing: In an allergist's office, testing is started using a plastic prick (scratch) device. A small volume of the purified allergen is gently pricked on to the skin surface, usually the forearm or the back, with very little pain although it can be very itchy. If prick testing is negative, sometimes intradermal testing is done with small needles. ...Read moreSee 3 more doctor answers
Unrelated: There is a common misunderstanding that one can be allergic to iodine yet this is incompatible with life -our thyroid hormone production depends on it. You are allergic to the muscle protein in shellfish and not to the iodine. The contrast dye reaction is from the molecular structure of the dye which releases histamine. You are not at higher risk for a dye reaction because of a shellfish allergy ...Read more
No: Eczema is diagnosed by examining the patient and taking a history. Allergy prick testing may be helpful in treating eczema, but is not necessary. Allergy testing by skin prick or blood test always needs to be interpreted with careful attention to the patient's history and symptoms. For example some patients may test mildly positive for milk allergy, but can drink milk every day without problem. ...Read more
Does desensitization vaccination works for allergic asthma?I got positive skin prick tests for 4-5 allergens....
Yes: It is effective about 80% of the time. However I'd doubt that getting allergy shots for 4-5 allergens would work for you since most people are allergic to dozens of airborne allergens except in the case of occupational exposure. ...Read more
Yes, helpful: I agree. Skin prick testing to evaluate for food allergies can be very helpful, and can help direct dietary restriction. It is always used in clinical context to support an adverse reaction to a food. The size of the reaction will indicate the likelihood of an adverse reaction and not if you will have anaphylaxis. ...Read moreSee 1 more doctor answer
Orally in small incr: Nut desensitization is still not approved by the fda. Nut allergen is given orally in progressively larger doses, starting from a dose that does not cause systemic reactions. Progressive doses cause a desensitization, actual tolerance after discontinuation of daily doses may or may not develop. Standardized extracts for use in practice are not in use today. ...Read more
How to get tested for tattoo ink allergies?
Common allergy for people with rhinitis, dermatografism, urticaria?
See an allergist : For evaluation, check aaaai.org or acaai.org for an allergist in your area, good luck ...Read more
I am an eczema patient should I go for ALLERGY ECZEMA COMPREHENSIVE PANEL, SERUM (FEIA) or ALLERGY COMPREHENSIVE PROFILE, SERUM
None of these: Eczema---atopic dermatitis----is NOT an allergy. Allergy tests are not useful, often harmful, for eczema. It is not related to foods. Not "stress" either. It is a genetic defect in the surface of the skin. We have very good technology to help eczema, but no cure. SEE A DERMATOLOGIST. Meanwhile use skin cleansers with pH 6 to 7. Apply a liberal amount of a ceramide cream after washing. A prescripti ...Read more
How accurate are allergy skin prick tests? Are 'true' allergies only manifested by nasal/eye secretions?
Not just eyes/nose: True IgE mediated allergy can affect all external body surfaces including eyes, nose, intestinal tract, skin, and lungs. As for skin prick test, the accuracy often depends on the extracts used (standardized ones are better) and the size of the reaction (the larger the more likely). Although a positive response indicates sensitization, the test results need be interpreted by an allergist. ...Read moreSee 1 more doctor answer
Patch Test: To test for allergy to hair dye, a small patch containing the hair dye chemical is placed on the skin and held in place by tape for 48 to 72 hours. After removal, the doctor will look for a local reaction where the hair dye contacted the skin to diagnose allergy to the dye (phenylenediamine). ...Read more
Yes: Patch testing can detect certain types of food allergies. For anaphylactic type (ige mediuated) food allergies, standard skin prick testing or specific ige blood tests are better at identifying food allergies. For other non-ige mediated reactions such as eosinophilic esophagitis, patch testing can identify some additional food sensitivities. Only have test recommended by a trained md. ...Read more
Is immunicap testing reliable for allergy in kids with severe excema?
He already did skin prick and blood tests for specific allergies
Helps some: All allergy related tests have benefits & limitations. Any finding of an elevated IgE response to a particular food is worrisome and worthy of excluding that food. Elevated IgG levels to foods do not always correlate with the kids actual responses to that food. This or other tests can provide a guide to your food selections so you can eliminate candidate foods & see if it makes a difference. ...Read moreSee 2 more doctor answers
No: Appropriate allergy testing is guided by the patients history and physical examination. Based upon this one's allergist will make a decision what to be tested for. The test, particularly for outdoor allergens is based upon the common allergens is that particular agricultural zone. Does this mean that all allergens will be tested no. ...Read more
I got tested for food allergies the RAST method. Is this as effective and sensitive as skin prick test to pick up?
Skin vs. RAST tests: Overall skin testing is slightly more sensitive than RAST testing, especially for indoor/outdoor allergens. If your food RASTs are all negative it is unlikely that a skin test will give you any further information. I use skin testing as original diagnostic test then use serum testing to follow food allergies over time. Clinical history must be taken into account, these tests can be inaccurate. ...Read more
Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more
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