Questions tagged [allergy]

Questions pertaining to a damaging immune response by the body to a substance, esp. pollen, fur, a particular food, or dust, to which it has become hypersensitive.

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How to make my lichen planus look worse to get rid of mandatory military service? [on hold]

Age:25 Sex: Male Height: 5'9" Weight: 220 lbs. Race: white Disease: lichen planus Duration of complaint: Past \~7 years Geographic and on the body: whole body, face, hands, legs, stomach, ...
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How do allergists find very rare allergies? [closed]

How can allergists determine the cause of allergy if a patient is clearly allergic (for example, has inflamed turbinates and elevated IgE antibodies in the blood), but standard skin tests show nothing?...
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Are non-allergic, non-pathogenic rhinitis associated with fever?

Among common causes of rhinitis are irritants weather changes infection (e.g. common cold) allergy (e.g. hay fever) One way to disentangle between infection and allergy in presence of rhinitis is by ...
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Why is the H2O molecule an antigen despite its tiny size and simplicity? [closed]

I just saw a news article about a woman with Aquagenic Urticaria which basically means she produces antibodies against H2O molecules which causes very bad symptoms if she touches or drinks water. We'...
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Why would someone have an anaphylactic reaction to intravenous saline?

https://www.sciencedirect.com/science/article/pii/S073567570800332X Abstract Anaphylaxis and acute allergic reactions may sometimes be fatal. They occur within minutes in a sensitized individual. ...
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131 views

Rising allergy and intolerance diagnosis rates

A leading theory behind the rising allergy and intolerance diagnosis rates is the "hygiene hypothesis." This theory suggests that living conditions in much of the world might be too clean and that ...
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160 views

Which conditions are associated with (multiple) food allergies?

Most people with food allergies are allergic to one or few foods, but allergies to more than three foods are relatively rare (PubMed, 2010). In some people who are allergic to several foods, an ...
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Is there solid evidence, that antibiotics cause allergies?

I have read, that the use of antibiotics could be part of the reason for the increase in allergies, we see today. In alternative medicine circles, it is a common theme to reduce the use of ...
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165 views

Is there such a thing as “histamine liberators” and how do they work?

In the context of allergies, I keep reading the term "histamine liberators" with claims that certain foods release histamine. A random example from everydayhealth.com: Some foods, while low in ...
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Is there a way to measure allergy to tablet/pill ingredients?

It looks like I have some kind of allergy to tablets/pills. It doesn't matter which type I take (I used to take mainly vitamins). If I take some, the result is vary from bearable sickness (for 2 days)...
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Does increasing “allergy” histamine affect “wake” histamine? Do both respond to the same triggers?

I understand that histamine is used by the body as part of the immune response, widening blood vessels, etc., to aid the white blood cells in their attack. Often this ends up helping them attack ...
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Is it possible to be allergic to corn but not popcorn?

Is it possible for a person to be allergic to one subspecies and not another of the same parent species? For instance, can a person be allergic to sweet corn but not popcorn (both subspecies of Zea ...
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1answer
136 views

How would I know whether I am lactose-intolerant? Are there any tests?

I suspect that I might be lactose-intolerant, but I don't know how to tell. Can I just see a doctor and get tested, or do I have to live with the assumption? If there are any standardized tests, how ...
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Cold allergy is it possible?

This may be a impossibility but here goes, is it possible to be allergic to cold temperatures? If it’s possible then it’s UBER rare granted, but still it might be possible non the less. If it helps I ...
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How long would someone be able to live if they suddenly became allergic to water?

Inspired by this tale - https://www.thefreelibrary.com/JUST+ONE+CUP+OF+WATER+COULD+KILL+LITTLE+HEIDI%3B+Girl%27s+deadly+allergy...-a061152595 Let's say someone is so allergic to H2O that a sip of ...
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What is an allergy?

Is an allergy a negative response to a molecule that the majority of the population doesn't have? I've heard that people can be allergic to lactose, which the majority of people aren't, while people ...
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34 views

How to deal with dehydrating medicine

If a person is dehydrated by something that cannot be gotten rid of, and drinking a lot of water solves some parts of dehydration but not others, due to losing the water by freqent urination, what ...
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Hyposensitization vs. allergen avoidance [closed]

Typical hay fever allergies (like trees and grasses) can give food allergies. Regarding the pollen allergies there exist the treatment of immunotherapy, usually monthly shots over the course of years....
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Does early exposure protect against developing allergies later on in life?

I recently read a few papers (here and here) that concluded that children exposed to peanuts before 1 year of age were less likely to develop peanut allergies later in life than children who were not ...
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How low can you go on a low salt diet?

I'm sensitive to salt and am considering doing a salt-free diet. Is it ok if I remove salt and seasonings from my diet and cooking altogether? Will the sodium content of natural foods like oats, milk, ...
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126 views

Possible side effects of deer antler velvet

My doctor suggested I try deer antler velvet. But I am not sure about it. Does deer antler velvet have any side effects? Does it help growth? Are there any scientific studies about it?
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How credible is negative result of allergic skin tests?

Allergic tests performed a year ago confirmed I am not allergic to a cat. However, there a few signals that make me doubt in credibility of the test results: I felt much better (less sneezing, less ...
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Are allergies due to memory T cells for benign antigens?

If I understand correctly, the immune system reacts to infections by priming virgin helper T cells for the particular antigens exposed on the surface of the invader, leaving some memory T cells ...
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Truth or fiction: Testing vitamins to take by holding them and assessing strength

I'm a Ph.D. candidate in molecular biology and cannot convince my indoctrinated mother and grandmother that you cannot determine whether or not you need to take a vitamin by simply holding it and ...
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Factors affecting the severity of an allergic reaction

I share a house with two very furry guinea pigs and inconveniently, am also very allergic to them. Every morning I take an anti-allergy tablet as I’m well aware that I’m likely to come into contact ...
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Are “latex fruit intolerance/syndrome” and “histamine intolerance” related or otherwise two names for the same problem?

I have an intolerance to bananas and avocados without a doubt. I get bowel cramps, bloating, and if I eat way too much of those foods, some mild topical itching on my skin. My research for latex ...
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358 views

Is there a shampoo that does not contain SLS or cocamidopropyl betaine?

If there is someone who is allergic to cocamidopropyl betaine and concerned about skin irritation from SLS (Sodium Lauryl Sulfate), is there a resource that shows shampoos without these ingredients?
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How to discover allergies to certain foods?

Sometimes it is hard to find food allergies. Wheezing or any side affects but the root cause may not be known. Is there a good way to find food allergy?
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Why do I have bad breath after taking certain medicines? [closed]

So yesterday I had a serious allergic reaction. My nose was watering, my eyes were hurting and all that stuff that happens in allergy. To combat the symptoms I took a pill of cetirizine and now I have ...
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50 views

How long can an allergic reaction last after exposure to an allergen?

My dad has a skin allergy (rashes, itchiness), and I want to cut out some things from his diet to see if it's causing the problem. But I don't know how long an allergic reaction can last in absence ...
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What shots are not okay for someone with egg allergies?

I have heard that flu shots generally are manufactured in eggs or chicken embryos, and so there can be an issue for people who are allergic to eggs. What other shots should people allergic to eggs ...
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Should all the stuff be thrown away when moving out from a house with mold?

Can anything from a molded house be safely moved to a new house without any further harm for health? Can spores be wiped out from clothes and furniture?
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Nutritional Info Required To List Allergens?

I discovered recently I am allergic to soy and have been looking at the labels on many foods I eat to discover it's in almost all the foods I eat. Some don't seem to make any sense - like raw walnuts ...
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Allergy Experiment Procedure [closed]

I have been following the whole30 diet as part of an experiment to determine if I may be allergic to certain food groups. prior to this experiment, on a day to day basis I would feel very tired, ...
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move across the country now i get sick [closed]

Ok so this is pretty bizarre hopefully someone could lead me in the right direction.so I lived in Los Angeles all my life and moved to north Carolina last year once I got settled in I went out to a ...
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how does the immune system identify allergens? application: varenicline and lobeline

I'm wondering if we know how the immune system identifies allergens. My biochemistry knowledge is basic so I apologize if I use concepts incorrectly! Specifically, I want to know about the likelihood ...
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392 views

Taking Benadryl after Claritin

I take Claritin in the mornings. Right now in the evening my eyes are itchy and I'd like to take Benadryl. Is this a good idea or not? Thanks!
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What causes asymptomatic itching with rarely distributed rash?

Preface: I am not a student of medicine or a medical professional by any means. All uses of anatomic and biologic terms come from a general education plus a little hobby-knowledge. Misuses of such ...
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Is immunotherapy effective against allergies?

I have been suffering from allergies for years and I have recently seen an allergist. I was told that I would be a good candidate for immunotherapy. However, it is not an inexpensive process and a ...
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Cleaning to rid house of cat allergen after cat is gone

We discovered through a blood test that our 3yo is severely allergic to cats. We have two cats who are 7 and 8 respectively and we're adopted as kittens. So their hair and dander is all over ...
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Long term effects of an allergy pill? Loratadine

Are there any studies/effects of long term use of an allergy pill? I use Loratadine to help control my environmental allergies but I'm concerned about it being an every-day thing. Am I facing any ...
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Should Neosporin never be used?

I read on https://millerfamilydermatology.com/things-that-are-forbidden-in-my-house/ (mirror): 1 Neosporin® Neosporin is a combination of 3 different topical antibiotics-Neomycin Sulfate, ...
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Allergic Reaction? Adderall + Welbutrin / Bupropion

Current Medications: Adderall 20mg IR, Welbutrin (Bupropion) 100mg IR twice /day. Symptoms: Over time I've developed an odd set of symptoms: --My face always tingles / i feel compelled to "pull" my ...
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Potato and rice diet to prevent allergic reactions to calm down atopic eczema

I've heard of a diet consisting only of boiled potatoes, rice (with salt) and cooked apples which shall help against skin problems possibly caused by allergies. The diet is supposed to be followed for ...
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760 views

Is it ok to use sterile eye drops every day

I have very allergic eyes that redden up very quickly even without rubbing. When it becomes too much I see the doctor and take some eye drops for a month. But the allergy keeps on coming back. A few ...
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Can HEPA air purifiers release allergens when particles inside the filter decompose / break apart?

The smallest of pollen grains (~0.6 microns) and other allergens should be trapped by a HEPA filter, however what happens when these decay / break apart? Is the allergen the whole pollen grain or are ...
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Air Cooler and Health Issues

I am new to air cooling appliances at home. Now, I am planing to buy a air cooler ( not conditioner), but I heard that it will create health issues such as dust allergy, cold etc. Because It ...
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165 views

Map of ragweed infested countries

I have a very serious ragweed allergy and I am living in Hungary which is pretty much super infested. I started wondering which countries are affected by this lovely plant, because I don't want to ...
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What is an appropriate Neti Pot solution, and how does one adjust it for best results?

Many people use neti pots for sinus irrigation. Using them can reportedly help with infections, allergies, headaches, congestion, and other sinus-related issues. Small packets of chemical mixtures ...
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My allergy-caused stuffy nose goes away when I exercise. Why?

I'm currently dealing with my seasonal pollen allergies, and currently the right side of my nose is simultaneously blocked and runny. But when I start exercising, for example five situps, the blockage ...