Pennyaline said:Gabby said:Pennyaline said:Allergies and sensitivities don't spring from a vacuum. They are immune
system reactions. They are caused by repeated exposure, in every case.
Or a single exposure in some cases, evidenced by my daughter's allergy
to milk.
Allergic reactions NEVER happen on the first, single exposure.
Sensitization happens once the body has manufactured antibodies
against a substance, and this is not an immediate event. When the
antibodies are ready and in circulation and the person is exposed to
the substance (allergen) again, the allergen/antibody conflict
triggers, the whole immune system kicks on, the inflammatory response
begins and the symptoms of allergic reaction manifest themselves.
What most people call "milk allergy" is not an allergic reaction at
all. In the case of milk, it is generally an enzyme deficiency that
causes the problems. If your daughter experiences the typical
prostrating *gastrointestinal* symptoms after ingesting cows milk,
enzyme deficiency is the culprit.
She could have had a reaction to something in the milk that is not an
actual chemical component of cows milk, something that she *had* been
exposed to before in another form or product, and that would have been
a true allergic reaction. But it is not a "milk allergy," as she will
react to it wherever she encounters it.
I wonder if you might know something about my allergy.
I can drink alcohol, no problems. And I can eat crustaceans - crabs,
prawns, lobsters (I am told that the normal allergy is to the iodine
content). But the two together, and it only takes a minute quantity of
alcohol in a sauce, for example, cause prolonged vomiting. I've only had
three episodes in my life, each worse than the last, and if it ever
happens again I don't doubt I'd be hospitalised.
I know of somebody who died of this, in hospital, when his heart gave
out under the strain of three days of vomiting. As a result, I
scrupulously avoid seafood - actually, I think if I accidentally ate a
prawn I'd throw up for purely psychological reasons. At yum chas it's
possible to to inadvertently consume prawn meat, but there's no danger
of alcohol having been used in the cooking and I avoid alcohol for 24
hours after a yum cha to be on the safe side.
I am also scared of other sorts of seafood like oysters, which may be
unnecessary but I'm not willing to try an empirical test. If I knew
exactly what was going on it would help, but it's beyond the GP's
expertise. Have you any suggestions?
Christine