There are many, many sites to explore on histamine, allergies, and anaphylaxis. It is well worth spending some time thinking this through and discovering your own personal opinion. It affects each and every person in some way. I have included some definitions and resources with links so you can start your own search.

 “An allergy is an exaggerated immune response or reaction to substances that are generally not harmful”

http://www.healthprofessor.com/landers/allergies.php?keywords=allergy&referrer=Yahoo&camp=HealthProfessor-Allergy&group=allergy&keyword=allergy

“You may have heard about anabolic steroids, which can have harmful effects. But there's another type of steroid - sometimes called a corticosteroid - that treats a variety of problems. These steroids are similar to hormones that your adrenal glands produce to fight stress associated with illnesses and injuries. They reduce inflammation and affect the immune system.”  You may need to take corticosteroids to treat (Read more)

http://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&query=steroid

Allergic reactions to medication (image)

“to the drug these antibodies cause release of histamines. If severe, this reaction can result in a ...”

www.nlm.nih.gov/medlineplus/ency/imagepages/19329.htm - Medical Encyclopaedia

Medline Medical Encyclopaedia: this is a very interesting and comprehensive look at how the body protects you.

The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful to the body.  http://www.nlm.nih.gov/medlineplus/ency/article/000821.htm

Epinephrine Injections

http://www.nlm.nih.gov/medlineplus/druginfo/meds/a603002.html

Andrew Goldbaum

http://www.goldbaum.net/balance/Whats_Histamine.html

What Are Allergies?
An allergy is an overreaction of the immune system to a substance that's harmless to most people. But in someone with an allergy, the body's immune system treats the substance (called an allergen) as an invader and reacts inappropriately, resulting in symptoms that can be anywhere from annoying to possibly harmful to the person.
In an attempt to protect the body, the immune system of the allergic person produces antibodies called immunoglobulin E (IgE). Those antibodies then cause mast cells (allergy cells in the body) to release chemicals, including histamine, into the bloodstream to defend against the allergen "invader."
It's the release of these chemicals that causes allergic reactions, affecting a person's eyes, nose, throat, lungs, skin, or gastrointestinal tract as the body attempts to rid itself of the invading allergen. Future exposure to that same allergen (things like nuts or pollen that you can be allergic to) will trigger this allergic response again. This means every time the person eats that particular food or is exposed to that particular allergen, he or she will have an allergic reaction.
http://kidshealth.org/parent/medical/allergies/allergy.html

http://www.foodallergy.org/allergens/index.html

Occurrence of sulfites
Sulfites occur as a result of fermentation and are found in:

A variety of cooked, processed and baked foods

Dried fruits, canned vegetables, guacamole and maraschino cherries

Condiments, jams, gravies, dehydrated or precut or peeled potatoes, molasses, shrimp and soup mixes

Beverages such as wine, beer, hard cider, fruit and vegetable juices, and tea

Processing of food ingredients including beet sugar, corn sweeteners and gelatin can also generate sulfites.

Sulfites also occur naturally in a number of foods such as maple syrup, pectin, salmon, dried cod, corn starch, lettuce, tomatoes, soy products, eggs, onions, garlic, chives, leeks and asparagus. ….

Sulfite sensitivity should not be confused with sulphates or with sulfur drugs. Patients with sulfite sensitivity should avoid all forms of sulfite.

http://www.aaaai.org/members/allied_health/articlesofinterest/sulfite.stm

Julie McNairn, MD, an allergist/immunologist in Cincinnati states "There can also be a feeling of impending doom," or as Dr. McNairn’s patients have described, “severe anxiety or feeling very nervous.” In another spot she states “These symptoms usually occur almost immediately after exposure to the allergen, but the anaphylactic reaction will sometimes not become full-blown until hours later.” How often have I heard these descriptions!!!

http://www.everydayhealth.com/allergies/anaphylaxis-reaction.aspx