When an individual has a severe allergy reaction, it can be an extremely serious situation that can even cause the person to lose their life if immediate medical attention is not sought after. When a person experiences an allergic reaction where anaphylaxis is involved, they will often experience such health problems as hives, swelling, blood pressure levels that are lower than normal, and even blood vessels that are dilated. Shock is not at all uncommon in the situation where a person begins to suffer from a severe allergy reaction. When this is the type of problem that is faced, it is extremely important to seek medical attention immediately. If it is not treated very quickly, it can become so serious that the individual can lose their life. Big amounts of histamines are a protein that is released throughout the body when the body’s immune system begins creating antibodies that are called IgE or immunoblobulin E. These work to help the body fight off disease and in the event an allergen is attacked, large amounts of histamines are released from the antibodies, thus resulting in the symptoms of an allergic reaction.