If you are allergic to something, you will break out in a rash with red itchy bumps. You may have symptoms like watery eyes, stopped up nose, or swelling. Severe allergic reactions involve swelling inside the bronchial tubes, leading to difficulty breathing and even death.
A person with allergies is generally understood to have an immune system that over-reacts to normal and inocuous materials, such as pollen. The "allergy shot" is an injected solution containing a very dilute and small amount of these materials. The idea behind allergy shots is to continuously expose the immune system to very low levels of the material so that the immune system learns to "tolerate" the material and the person will stop having allergy symptoms. Generally the person will need to be on allergy shots for the rest of his/her life - without constant low-level stimulation, the immune system tends to lose its tolerance and the allergy symptoms return.
No.
An allergy
An allergy.
That is called an allergy.
An allergy is when a person's immune system perceives something that is usually harmless as a threat to the body and launches an attack called an immune response.
No. It is impossible to contract an allergy from another person because allergies are something contained within your own affected immune system.
allergy
No, an allergy is an immune system response to a substance that the body perceives as harmful. It is not directly related to the circulatory system, although allergic reactions can sometimes involve increased blood flow and inflammation in the affected area.
an allergie
Allergies cause the immune system to react abnormally to the allergen that has entered the body. One of the more common allergies is pollen. When this allergen has entered the body, The immune system will attack it. Even though pollen is harmless, your immune system sometimes may think that a pathogen (germ) has entered the body, therefore causing the body to produce histamine. Your doctor will give you antihistamines if you are allergic to something. Antihistamines will stop symptoms such as a runny-nose, watery eyes and itchy eyes.
It can potentially kill you or make you really ill.