Allergy is our immune system’s exaggerated response to a foreign substance that is not harmful. The reason why we use “exaggerated” because those foreign substances can cause no effect on others. Those substances are what we called Allergens. Examples of allergens are dust, food, molds, mites, pollen, fur, or even medication. An allergic person exposed to those allergens may become hypersensitive.
Signs and Symptoms of Allergy
The signs and symptoms depend on the affected organ.
|Affected organ||Common signs and symptoms|
|Nose||Swelling of the nasal mucosa (allergic rhinitis) runny nose, sneezing|
|Eyes||Redness and itching of the conjunctiva (allergic conjunctivitis, watery)|
|Airways||Sneezing, coughing, bronchoconstriction, wheezing, and dyspnea, sometimes outright attacks of asthma, in severe cases the airway constricts due to swelling known as laryngeal edema|
|Ears||Feeling of fullness, possibly pain, and impaired hearing due to the lack of eustachian tube drainage.|
|Skin||Rashes, such as eczema and hives (urticaria)|
|Gastrointestinal tract||Abdominal pain, bloating, vomiting, diarrhea|
Cause of Allergy
The Immune system is composed of cells and proteins that defend the body to infections. It has a record of all the microbes that may cause harm to our body, and they will react once the presence there are foreign bodies such as those allergens.
Until now, researchers are not sure exactly the reason the immune system is reacting to some factors though it may not be harmful to others. Genetics is one of the factors that they look into; for example, your father has allergic rhinitis; this can be passed on to you or maybe not. But let’s see what the most common allergies are.
Most Common Allergies
An abnormal reaction of the immune system to a specific medication. Prescription drugs have gone through a series of tests to ensure safety, but despite that few individuals will develop some side effects or also called “adverse reaction.”
There are two(2) types of rashes in the skin Urticaria and eczema. Urticaria, also known as hives, is a red itchy bumpy rash that is often short-lived and can appear in various shapes and sizes anywhere on the body. Chemicals cause an allergic reaction in certain foods, insect stings, sunlight exposure, or medications can all cause histamine release.
Also known as “hay fever.” It is the most common allergy, and it affects the nose. Its symptoms are runny nose itching, sneezing, and nasal blockage (congestion). It may be seasonal or In some cases, it will be present all-year-round. It can get by dust mite, cats, dogs, and molds.
The most common cause of allergy in adults are fish, shellfish, and nuts. For children, it can be caused by eating eggs, milk, peanuts, tree nuts, soy, and wheat. The most severe allergic reaction is anaphylaxis – it is fatal and must be treated immediately. It’s good to know if you have some allergic reaction to eating some kind of food. An allergist can evaluate your symptoms and determine the source.
It is a condition in which your airways narrow and swells, and it will also produce extra mucus. The condition will make it hard for a person to breathe.it is accompanied by coughing, wheezing, and shortness of breath. Asthma can be inherited or with environmental factors.
Also describes as skin irritation. It shows signs of itchy, dry, or a rash on swollen, reddened skin. Far worst, it can evolve to the surface to blister, ooze, crust, or flake off. An example of this condition is dandruff and atopic eczema.
Eczema is a condition where patches become inflamed, red, itchy, cracked, and rough. Environmental factors like pollen and smoke is another reason, also from some food such as nuts and dairy.