Seasonal allergy

What is Seasonal allergy?

An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies.

In technical terms, an allergen is an antigen capable of stimulating a type-I hypersensitivity reaction in atopic individuals through Immunoglobulin E (IgE) responses. Most humans mount significant Immunoglobulin E responses only as a defense against parasitic infections. However, some individuals may respond to many common environmental antigens. This hereditary predisposition is called atopy. In atopic individuals, non-parasitic antigens stimulate inappropriate IgE production, leading to type I hypersensitivity.

Sensitivities vary widely from one person (or other animal) to another. A very broad range of substances can be allergens to sensitive individuals.

Questions and answers on "Seasonal allergy"

Hi, I have asthma and play a lot of soccer throughout the spring. I also have seasonal allergies. However, I have been sick multiple times in the...

doctor1 MD

hi
thanks for the query,

from the description that you gave to us, there are chances of some respiratory infection (respiratory tract or lung...

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Hi doctor,
Am currently taking medicines for seasonal allergy that are giving me a lot of Sid effects.
Pain in lower abdomen,acidity,stomach...

doctor1 MD

the acidity is complication of allergy and medicines as thre are seasonal allergies as tie goes allergies go to other system like stomach
and...

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Recent questions on  Seasonal allergy

doctor1 MD

Hi I am a 59 year old male. I have a slightly enlarged prostate but I have been peeing (barely) many times during the night. It seems to coincide...

doctor1 MD

11 year old boy who has small red spots on skin. Says they itch all the time and he scratches them until they bleed. They scab up and scar his...

doctor1 MD

I am feeling very anxious, agitated, sleepless and muscle tension while on my third day of Aerius for seasonal allergies. I also have been on Paxil...

doctor1 MD

My father is 49. He has had a sudden onset of severe hearing loss. Over the past few months he has notice a decrease in hearing, but a sudden onset...

doctor1 MD

My wife is 48. She has an awful cough about twice a year that can last for several weeks. She has broken ribs on two different occasions. She has...

doctor1 MD

Hello, I have been recently been stressed and I started to overthink about every little issue. Last year exactly at this time..i was having anxiety...

doctor1 MD

For the past week, I have been having typical seasonal allergy symptoms that I have had before. However, this year I am also having a symptom I've...

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