If I move from one area of the country to another, how long will it take me to become allergic to the pollens in the new area? General wisdom suggests that it takes two to three seasons of exposure for you to become allergic to the agents in the new area that were not present [...]

The sting of a bee may cause dangerous allergic reactions in an atopic child. The symptoms vary according to the amount of venom injected, the presence of sensitivity, and the place of the sting. A normal reaction consists of the formation of a wheal, irritation, itching, and local heat. The reaction disappears without treatment three [...]

Ken was in his forties when he was first found to have high blood-pressure. He was given drugs which controlled this well and had no more health problems for the next four years. Then he experienced pains in the chest, faintness, sickness and sweating. Suspecting a mild heart attack, his doctor had him admitted to [...]