Semen allergy suspected in rare post-orgasm illness: "LONDON (Reuters) - A mysterious syndrome in which men come down with a flu-like illness after an orgasm may be caused by an allergy to semen, Dutch scientists said Monday.
Post orgasmic illness syndrome is largely unknown among family doctors and experts say many men who suffer the condition feel ashamed about it and confused about what is wrong. Hyposensitisation therapy is a well-known technique for treating allergies, also called allergen immunotherapy, which repeatedly exposes the body to small but gradually increasing amounts of the allergen over several years.
In the POIS therapy, the men were given skin injections containing their own semen, at first in an extremely dilute form, and then in gradually less diluted forms. The study's results showed that after one and three years respectively, the men showed a significantly reduction in their POIS symptoms.

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