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what is allergic reaction

A 35-year-old member asked:
Dr. Joseph Eastern
43 years experience Dermatology
What it says.: If you get stung or bitten by an insect, and you are allergic to the insect's venom or saliva, you develop an allergic reaction to the sting or bite. ... Read More
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Dr. Donald Shenenberger
24 years experience Dermatology
Allergy: Insect venom is made usually of proteins. Our immune system can develop antibodies to these venom proteins. This reaction will cause certain immune sy ... Read More

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A 40-year-old member asked:
Dr. Arthur Torre
50 years experience Pediatric Allergy and Asthma
Overreaction: An allergic reaction is an overreaction of the immune system by an allergic individual to a substance that is normally harmless. Reactions can includ ... Read More
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4 thanks
Dr. Nanette Nuessle
Specializes in Pediatrics
A chemical reaction: An allergic reaction is when a trigger, either ingested or in the environment, causes the body to release histamine and leukotrienes. The reaction can ... Read More
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Dr. Douglas Tzanetos
18 years experience Allergy and Immunology
An altered reaction: The roots of "allergy" are from greek "allos" (different) and "ergos" (action). So, an allergic reaction is a "different" (from normal) reaction. Th ... Read More
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7 thanks
A 36-year-old member asked:
Dr. Corey Clay
9 years experience Allergy and Immunology
Allergic reaction: .. is an inappropriate immune response to a trigger, or allergen (eg pollen). The body forms immunity to something it recognizes as foreign, but also ... Read More
A 46-year-old member asked:
Dr. Arnold Beresh
40 years experience Podiatry
Allergist: You would need to see an allergist for skin testing of the ingredients.
A 36-year-old female asked:
Dr. Linda Green
44 years experience Pediatric Allergy and Asthma
Allergic reaction: Allergic reactions to foods can be itching, hives, trouble breathing, throat swelling, wheezing or even GI symptoms such as vomiting or diarrhea..
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A 34-year-old member asked:
Dr. Duane Gels
36 years experience Allergy and Immunology
Why allergists exist: Finding & treating the cause of allergic reactions is the main function of an allergist. A solid understanding of the immune system is required, s ... Read More
A 28-year-old member asked:
Dr. Tsu-Yi Chuang
49 years experience Dermatology
Timing: It depends on the timing. The contact with the allergens, either through skin or oral, usually happens days or weeks ago. Person's recall history is c ... Read More
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A 32-year-old female asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience Allergy and Immunology
Almost equal: for allergic reaction, hydroxyzine is precription only though, but you suffer that often and have swelling, better be evaluated, as epinephrine might ... Read More
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1 thank
A 38-year-old member asked:
Dr. Thomas Rohde
34 years experience General Practice
Inflammatory rxn: An allergic reaction is the body's defense against an agent it considers harmful or toxic to the body. Most allergic reactions start with food allergi ... Read More
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3 thanks
A 63-year-old female asked:
Dr. Brad Goldenberg
35 years experience Pediatrics
Antihistamine: benadryl (diphenhydramine) - taken orally, should calm down the inflammation, although cooling, topical steroids, or just time and patience will resol ... Read More

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