Allergy Symptoms

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dr. simi paknikar
Medically Reviewed by dr. simi paknikar, MD
Last Updated on Nov 04, 2016
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What are the Symptoms of Allergy?

Symptoms of allergy often depend on the route of exposure to the allergen.

Symptoms of allergy have a pattern. Pollen allergies appear at the same time every year. Pet allergies happen when one is around a certain animal, or in many cases, just enter a building where the animal lives. Dust allergies crop up while cleaning the house, shaking out rugs or on entering a very dusty building.

Symptoms of allergy arising from air-borne allergens like pollen, dust etc. include -

  • Allergic rhinitis- A cold that never seems to go away. A running nose, congestion, or coughing that occurs pretty much constantly and lasts for more than 10 days can point to allergies.
  • Wheezing or frequent coughing could indicate a serious allergy or asthma.
  • Eyes are persistently red and itchy.

Symptoms of allergy due to foods or medicines include -

  • Abdominal pain
  • Bloating
  • Vomiting
  • Diarrhea
  • Skin hives
  • Itchy skin

Rarely, allergies can set in a severe reaction called anaphylaxis, which is life-threatening. In an anaphylactic reaction, the body launches an emergency state of allergic reaction, flooding all systems with histamine and other chemicals. Capillaries and blood vessels expand (which explains the sensation of flushing and the dangerous drop in blood pressure, often described as feeling faint or going into shock), the bronchial tubes constrict (causing wheezing or difficulty in breathing) and sometimes the tissues of the throat and mouth swell, a dangerous symptom that can cause suffocation, coma and even death.

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I was diagnosed with shingles three weeks ago, the medication gave me an allergic reaction, I am still taking more medication because my head will not stop itching and my ears are swollen, I have never felt so rough

jamesmathew389

The allergies can be different as the causes for it appears to be different but if not treated properly may causes serious problem on body. 24 Hour Emergency Room Houston

crystal79

I just noticed faint white sploches on my legs and upper thighs look like polka dots,dime size and some smaller.Some of them have tiny red pimple like spots in center. when i rub my legs they disapear for a second and then slowly reappear.I am someone that my feet will turn purple easy and i have sensitve skin as iam getting older i'am 32 years old female.Have been spending more time outside could it be an allergy.

ashokmay1956

I am Suffering from skin allergy since last years leo citrazine tablet give relief for 3 days kindly suggest remedy

One year ago i have developed hair dye allergy which troubles me as asthama attack, reddish eyes etc. So i changed another dye which gives me very mild asthama but more skin itching on scalp etc.. I am in contact with doctors. Advise me more !!

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