Food allergy is actually an abnormal response triggered by the immune system to food as if it is threatening. Food intolerance looks similar to food allergies. However, the difference lies in how each one of them affects an individual. Food allergy is extremely intrinsic and to an extent, affects the internal organs. 

On the other hand, food intolerance is less severe, mostly just affects the digestive system due to the inability to digest that particular food properly, leading to an upset stomach. Most of the people suffer from food intolerance only, but they confuse it with food allergy.

About ninety percent of all cases of food allergy are related to only eight types of food as per research statistics. These are milk, tree nuts, egg, peanut, soy, wheat, shellfish, and fish.

The Reaction:\

In order to understand how symptoms manifest, it is of utmost importance, in this case, to understand how an allergic reaction to food occurs. An allergic reaction is a bi-step process as discussed further.

Step1: On exposure to the food allergen for the first time, the body reacts abnormally and produces IgE antibodies against the perceived allergen. These circulate throughout the entire body with blood and attach themselves to basophils (found in blood) and mast cells (found in sites like the nose, lungs, throat, gastrointestinal tract, skin, etc.).

Step 2: The next time the body is exposed to a particular food allergen, it gets alert and alarms the tissue that releases histamine in large quantity. Depending on the site of release, allergy symptoms are caused, ranging from mild to severe to potentially life-threatening (for example, in anaphylaxis).

The time span for an allergic reaction manifesting into symptoms can vary between a few minutes to several hours post exposure to the food allergen. The site of mast cells for release of histamine greatly affects the location and timing of the reaction.

Who is at Higher Risk?

If a person has a family history of developing a food allergy, it creates even greater chances for him/ her to have the same or similar reactions. If both the parents have some kind of allergic reaction to food, it is very likely that the child would have that too.

Symptoms:

Symptoms of food allergies largely depend on the sites of mast cells that release histamines. It is possible that these sites are located in nose, ears, or throat leading to itching in mouth, having a trouble in swallowing and breathing, and swelling of lips and tongue. If the location is in the gastrointestinal tract, it may lead to vomiting, diarrhoea, and abdominal pain. If it is in the skin, it might lead to hives, itching, decolourization, pigmentation, worsened eczema, etc.

Cross Reactivity:

If a person has an allergy to a particular food, it is advisable to abstain from similar types of food. For example, if somebody is allergic to crab, he/ she should abstain from shrimp, crayfish, lobster, etc. too as they might also trigger the reaction. This is called cross reactivity.

Treatment:

It is always advisable to abstain from foods which cause an allergic reaction in an individual. However, in case it has already occurred, there are two major types of medication which help in relieving the symptoms. Antihistamines are used for treating mild to chronic reaction, whereas adrenalines are used for severe reaction like in anaphylaxis.

Take Away:

Food allergy is usually a condition for life and cannot be permanently treated. However, symptoms can be relieved. Therefore, it is advisable to avoid the allergy, causing group of food.

Food Allergy - Everything About It!

An estimated 10 to 30 percent of people across the world suffer from Allergic rhinitis. Allergic rhinitis, more commonly known as hay fever, is a condition wherein the immune system overly responds to allergens resulting in inflammation in the nose. As you might be aware, an allergen is typically a harmless substance present in the surroundings causing an uncomfortable allergic reaction.

Following is a detailed account of the condition.

Symptoms-
Some of the most common symptoms of allergic rhinitis include,

Sneezing
Stuffy and runny nose
Persistent coughing
Itchy and watery eyes
Sore throat
Frequent headaches
Dark circles under the eyes
And, symptoms associated with eczema
Further, it also results in hives and excessive fatigue. An allergic person is likely to feel many of these symptoms within a few minutes of coming into contact with an allergen. Some symptoms, such as recurrent fatigue and headaches can only happen when there is long-term exposure to allergens. There are some people, who rarely undergo any signs, and this happens when a person is exposed to the allergens in massive quantities.

Causes of Allergic Rhinitis:
When the body comes in contact with the allergen, it triggers the release of histamine which is a natural chemical that defends the body from the allergen. This histamine can lead to allergic rhinitis and the associated symptoms which may range from a blocked or a runny nose to itchy eyes. Common allergens include pollen, dust mites, animal dander, grass pollen, and mold.

There are two variants of allergic rhinitis- seasonal and perennial.

Seasonal- Seasonal allergies usually occur during specific seasons owing to the response to outdoor allergens. For example, during a specific time in the year such as spring, the pollen can cause allergies in a person. Also, when trees and flowers release pollens during the fall and summer, seasonal allergic rhinitis can be seen on the rise.
Perennial- On the other hand, perennial allergens tend to linger all-round the year, and pet dander, mold or dust mites come under perennial allergic rhinitis causing allergens.
Diagnosing and treating allergic rhinitis-
When a person is suffering from minor allergies, a physical exam may be required. But a doctor may also perform some tests for identifying the best course of treatment as well as prevention plan for a particular patient. A skin prick test is one of the best ways to determine whether you have allergic rhinitis.

This health issue can be treated in a variety of ways which range from home remedies to medications to alternative therapies. Common medications include antihistamines, decongestants and nasal sprays and eye drops.

Staying away from a known allergen is the best possible way to prevent allergic rhinitis. When diagnosed, it is necessary to consult your doctor as the condition may sometimes lead to complications.

Allergic Rhinitis - Everything That You Ought To Know

Pollen is a common trigger for seasonal allergies. It may manifest as runny nose, cough, sneezing, stuffy nose, swelling around the eyes, etc. People begin to feel the bite of pollen allergy during spring when pollination in plants begins.

Pollen allergy affects a vast majority of people, and over-the- counter allergy relief medication is big business. However, it must be noted that there is hardly any permanent cure for pollen allergy. Nevertheless, there are ways in which one can get relief from the symptoms.

What Is Pollen and How Does It Cause Allergy:

The microscopic granules contained in flowering plants are known as pollen. While almost all flowering plants have pollen, all of them don t cause allergies. Plants that have bright flowers can hardly trigger allergy symptoms. It is the tiny and dry pollen that comes from trees, weeds, and grasses that precipitate the symptoms. These granules blow in the wind and get into the respiratory system. This precipitates an immune reaction which produces histamines. These are the chemicals that cause sneezing, stuffy nose, itching, runny nose etc.

Pollens can traverse distances of up to about 100 miles from the source. Since different varieties of plants, trees and weeds pollinate at different times, the season of pollen allergy is quite an extended one. It calls for precautions to prevent allergies and medicines and means to counter the effects.

Pollen Allergy Relief:

Allergy medicines are the best way to get relief from allergy symptoms. Doctors suggest starting on these medicines even before the onset of pollination season. These medicines are known as Antihistamines, which counter the effects of pollen.

These medicines block the histamine receptors in the ear-nose-throat region and thereby nullify the effects of pollen. If a person continues to take antihistamines throughout the pollination season, he/she deny the histamines a chance to get attached to the receptors and precipitate symptoms.

However, if a person is already suffering from the symptoms, antihistamines will not be able to quickly stop the problem. It will also not be able to reverse the effects of allergies. However, it can surely prevent exacerbation of symptoms.

Doctors also suggest using nasal corticosteroids for at least two weeks before pollination season so that the symptoms can be kept at bay. They work by modulating the response of the immune system and thereby preventing the release of chemicals that trigger allergies. If people take these medicines before exposure to pollen, they may even stabilize the immune system and prevent it from reacting to pollen.

Quick Allergy Relief:

If a person has not been proactive enough to take allergy medicines before the onset of pollination season, one needs to fight out the symptoms. However, there are some home remedies that can help a person put up a good fight with the irritating symptoms. One can do regular nasal irrigation with saline water several times a day throughout the pollination season to get some relief from allergies.

Conclusion:

There is hardly any perfect treatment for pollen allergy. However, one can stay safe with antihistamines or corticosteroids starting before exposure to pollen. In case a person gets attacked by these pollen allergies, seeking an immediate help is always advisable and recommended. Following the preventing instructions will help a person to fight against these allergies.

Pollen Allergy - How To Get Relief From It?

In reality, dust allergy is precipitated by dust mites, a kind of microorganisms that thrive in dust. They acquire their food from dead skin cells and absorb water from the environment and thrive. Moist and warm environments are ideal for them to thrive. However, they themselves don t cause allergic symptoms. 

It is the response of the immune system to them that precipitates the symptoms. Once they are inside the human respiratory system, the immune system responds to them in a negative way. This leads to the production of histamines, a kind of protein that abates swelling, cough, mucous production, runny nose, sneezing, etc.

Symptoms of Dust Allergy:

Dust allergies may lead to various symptoms, some of which may be short lived, while others may be chronic. Some of these symptoms may also be life threatening. While in general people may suffer from running nose, stuffy nose, sneezing, coughing, itchy eyes, postnasal drip, swollen skin under the eyes, etc., in severe cases, people may also suffer from asthma, chest pain and tightness, trouble in sleeping due to shortness of breath, bouts of severe cough, sinus infection, etc.

Risk Factors:

Some of the common risk factors are: 

Family History: People who have a family history of dust allergy are most susceptible to this problem. These people develop a sensitivity to dust mites.

Exposure: Exposure to dust mites is the main cause of dust allergy. If someone is exposed to dust mites for a long time, it enhances the risk of allergy symptoms.

Being a Child: Children are more susceptible to it than adults. They are more likely to develop allergies during childhood and early adulthood compared to adults.

Diagnosis:

Most dust allergy symptoms are similar to common cough and cold symptoms. This is why it is necessary to confirm that the symptoms owe their origin to dust allergy. As a primary physical examination, the doctor may examine the lining of nasal passage to see if it is swollen.

In case the person is allergic to dust or pollen, the lining of the nasal passage is likely to become inflamed. However, the doctor also needs to conduct some tests. He may conduct skin tests and blood tests to confirm the allergy. If the allergy is confirmed, the doctor goes for treatment.

Treatment:

There are a number of treatment options for dust allergy. Some of these may act as over-the-counter to counter the effects of dust allergy, while others may act as modulators to modulate the immune response.

Antihistamines: These are medicines that counter histamines responsible for allergic reactions like itching, runny nose, sneezing, etc.

Corticosteroids: Corticosteroids are usually delivered through nasal sprays to bring down inflammation and control the allergic response of the immune system.

Decongestants: They help to decongest nasal airways which get inflamed and swell up due to allergic reactions.

Leukotriene Modifiers: These medicines block certain immune system chemicals responsible for allergic reactions and prevent allergic reactions.

Immunotherapy: The doctor may go for immunotherapy if no other effort is yielding any results. This therapy trains the immune system so that it does not become sensitive to dust mites. It is delivered via injections.

Conclusion:

The primary defense against dust allergy is avoiding breathing in dust. However, if a person is already exposed to them, there are a number of medicines and treatment options to prevent a flare up.

Dust Allergy - Risks, Diagnosis & Treatment Of It!

The number of allergens are many and knowing what triggers your allergies can get complicated. The common triggers that are known to trigger allergic rhinitis are:

Moulds
Fungi
Pollen, the most common cause for allergies
Dust mites, and the faeces of dust mites that can cause severe allergic reactions
Cockroaches
Animal dander, which includes cat hair, dog fur, and may also include little flakes of skin
Avoiding the above mentioned triggers is more of a general guideline for the management of allergies. The lifestyle changes that you make to manage allergies:

Keep yourself hydrated at all times. Drink about eight to ten glasses of water every day. This will allow the mucous to be expelled with ease, if you experience any nose block.
During seasons like spring, when the amount of pollen in the air is at its maximum, limit your exposure. Try to stay indoors to avoid exposure to pollen or dust in the air.
Make it a point to take a shower before going to sleep as the residues of pollen and dust stuck to your skin are likely to make your symptoms worse.
Use fresh bedding and clothes every day. This will help to reduce your exposure to allergens.
Remove your carpets. Carpets are home to dust mites and pollen grains which become difficult to remove even with vacuum cleaners. Remove the carpets during the allergy season, and replace with hard flooring.
Keep windows and doors shut to avoid dust and pollen grains from entering the house and possibly causing allergies.
Avoid staying around pets. It that is not possible, then wash them at least once a week to reduce allergies.
Prevent inhaling cigarette smoke or smoking cigarettes. The smoke can be very harmful and can increase the risk of asthma in kids.
Avoid outdoor trips during seasons when the pollen count is high.

Allergies - Lifestyle Changes That Can Help Manage it!

Allergic rhinitis is characterized by symptoms of a runny nose, congestion, itchy eyes and sneezing. This disorder is usually caused by allergens such as pollen and dust. Commonly known as hay fever, allergic rhinitis may exhibit the following symptoms:

The symptoms of allergic rhinitis are:
1. You may experience a runny nose and congestion in the nose
2. You may have allergic conjunctivitis where your eyes turn itchy and watery
3. Persistent coughing
4. Symptoms of sneezing
5. Swelling may develop underneath the eyes
6. You may have an itchy nose
7. Constant signs of fatigue

Causes
Allergic rhinitis or hay fever causes the immune system to recognize certain airborne substances as harmful. The immune system in the body starts to form antibodies to combat these irritants. The antibodies cause the body to release  histamine , a chemical that triggers the symptoms of allergic rhinitis.

The various triggers that may cause allergic rhinitis are:
1. Dust mites
2. Tree pollen
3. Grass pollen
4. Spoors from outdoor and indoor fungi
5. Ragweed pollen

The treatment for this disorder is to avoid exposure to the triggers. Mild symptoms of this disorder may be treated with over-the-counter medications whereas severe symptoms may require prescription medications.
The various medications for allergic rhinitis are:

Antihistamines: Antihistamines may be administered as pills or nasal sprays; these medications can help with itching and sneezing. Antihistamines help in limiting the effects of histamine in the body.
Nasal corticosteroids: These prescription medications can help treat itching and inflammation in the nose. They are usually the first medications that are administered.
Decongestants: Decongestants are over-the-counter medications that can be used to treat congestion in the nose. You should be careful not to overuse these medicines as they can increase blood pressure.
Allergy shots: If medications do not relieve symptoms of allergic rhinitis, the doctor may prescribe allergy shots to treat the disorder. The injections contain allergens in small amounts which are injected over a period of time; this causes the body to get used to these allergens, resulting in a reduction of the symptoms.

Allergic Rhinitis - 7 Signs You Are Suffering from it!

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