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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16
votes
1answer
922 views

How do antihistamines work?

We recently got some new kittens and my step son is allergic to them. He mostly suffers from a runny nose, but also had itchy eye last night after he Left a robe in the kitten room all day Put it ...
10
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1answer
126 views

How does the body develop an allergy during a lifetime?

I've heard about people who weren't allergic to peanut butter or pollen previously in their lives, but suddenly develop an allergy to that substance. What is the mechanism behind an allergy "suddenly" ...
8
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2answers
176 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 ...
8
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1answer
106 views

Does some food increase pollen allergy symptoms?

As a pollen allergic, should I avoid of eating some kinds of food which may increase pollen allergy symptoms?
7
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2answers
201 views

Difference between common cold and flu?

What are the differences between flus and colds? I don't know about English, but in Spanish they confuse it very often when using words gripe and resfriado. Maybe it's not the case in English, but I ...
7
votes
1answer
7k views

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 ...
6
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1answer
25k views

Do Benadryl and Loratadine contain the same active ingredient?

When I get bad Hay Fever, I take either Benadryl or Loratadine. I am wondering what the active ingredients are in these, and Is it okay to take them both together (or would that be over dosing)? On ...
6
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1answer
209 views

How likely is it for someone to develop a serious allergy in adulthood ?

I always am slightly afraid of food which I know contains allergens, as although I have never had a serious allergic reaction to anything, one of my friends suffers from them. Is there any real (let's ...
6
votes
1answer
73 views

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 ...
6
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3answers
111 views

Seasonal allergies home remedies

Like many I have seasonal allergies and spring time is hell I am allergic to grass and tree pollen Are there any home remedies that actually work ? Any way to train body to adapt?
6
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0answers
73 views

Why are peanut allergies so much more severe than other food allergies?

Based on my understanding of how adaptive immune responses arise, I would expect peanut allergies to be roughly normally distributed with regard to severity, like other food allergies. However, peanut ...
5
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2answers
150 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 ...
5
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1answer
185 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 ...
5
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1answer
327 views

Can pheromones or sun trigger/cause allergy?

One of my friends is having Eosinophilia (the eosinophil count in the peripheral blood should be in the range 0-5×10^8/L, in her case it's 12.) She says that she has many allergies like from dust, ...
5
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1answer
37 views

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 ...
5
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2answers
99 views

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 ...
5
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1answer
49 views

Are steroids effective for treatment of ACEI-induced angioedema?

A class of blood pressure medications called angiotensin converting enzyme inhibitors (ACEI, e.g. lisinopril, benazepril, etc) sometimes have a side effect of angioedema, usually manifesting as lip ...
4
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2answers
163 views

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, ...
4
votes
2answers
130 views

How does the process of receptor blocking impact the human cells in context of antihistamine drugs (irreversible antagonist)?

I have problem in understanding what it really means that antagonist is irreversible. I have an allergy and I stopped to take some drugs because of side effects. I tried to predict how long does it ...
4
votes
2answers
424 views

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?
4
votes
1answer
54 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 ...
4
votes
1answer
1k views

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 ...
4
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0answers
66 views

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 ...
4
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0answers
81 views

Do salt rooms really help fight pollen allergies?

I've heard that sitting in salt rooms, also known as halotherapy, can help fight pollen allergies. Is there any scientific proof that this claim is true? If so, why?
4
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0answers
67 views

Can a person eliminate lactose intolerance through extended exposure?

It sounds dangerous or at the least uncomfortable, but I have a friend who thinks drinking milk daily will help cure him of lactose intolerance. Are there any studies that indicate prolonged exposure ...
3
votes
1answer
4k views

How fast and effective does an epi-pen work against a peanut allergy reaction?

Last night, I read a horror story about a baseball coach who assaulted his star player after training because she made his son look bad as the eternal number 2. He fed her peanuts while she had a nut ...
3
votes
1answer
592 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 ...
3
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1answer
55 views

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 ...
3
votes
1answer
290 views

do diphenhydramine and loratadine have same preservatives?

Do they use the same preservatives in diphenhydramine as they do loratadine? My doctor tells me I'm allergic to diphenhydramine but I'm also allergic to my dog and would like to know if loratadine is ...
3
votes
1answer
192 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 ...
3
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0answers
24 views

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 ...
3
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0answers
23 views

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 ...
3
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0answers
41 views

Will food allergy rashes eventually stop appearing?

I've recently noticed that after eating certain food, I develop a minor allergic reaction in form of a small red rash or two, anywhere on my body. The allergic reaction is in my opinion very minor, ...
3
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1answer
118 views

Can consumer-oriented heart rate tracking devices/smartwatches be used for implementing Dr. Coca's food sensitivity test?

The pulse test invented by Dr. Coca involves measuring heart rate every 30 minutes after a meal to detect its rises after an allergenic meal - http://www.soilandhealth.org/02/0201hyglibcat/020108....
2
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1answer
72 views

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 ...
2
votes
1answer
80 views

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 ...
2
votes
1answer
65 views

How does the amount of allergen in an allergy shot compare to a 6X homeopathic dilution

I have a bottle of liquid that is meant to build my immunity to "cedar fever," a common allergy in central Texas. It is a homeopathic medicine which contains the cedar pollen at a 6X dilution, ...
2
votes
1answer
59 views

Food Packaging Labels' Ingredient Statement 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 ...
2
votes
2answers
137 views

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, ...
2
votes
1answer
140 views

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. ...
2
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1answer
43 views

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?
2
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1answer
506 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!
2
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0answers
14 views

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 ...
2
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0answers
418 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?
2
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0answers
32 views

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 ...
2
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0answers
25 views

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 ...
2
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0answers
54 views

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 ...
2
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0answers
30 views

Can allergies “generalize” to other substances present during an allergic reaction?

I've heard some claims that allergic reactions to one substance can "generalize" to other substances present at the same time. For example: A person is allergic to lobster, but not to clams. The ...
2
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0answers
65 views

Is it ok to run (slowly) with a swollen foot (just an allergic reaction to a sting)?

I have read that those allergic reactions are mainly excess of water in tissues. Would it help to do some exercise, and since it's quite swollen (I got sting 3 hours ago by something, the pain is ...
1
vote
2answers
77 views

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 ...