51.   -- Symptoms include allergic reactions, asthma, and other respiratory ailments.

52.   A fairly new product available without a prescription is Nasalcrom, a nasal spray that can block allergic reactions before they begin.

53.   A deadly killer capable of triggering fatal allergic reactions?

54.   A fine dust of microscopic particles from plants is what triggers allergic reactions.

55.   A partner recognized that she was having a severe allergic reaction, gave her oxygen and a shot of antihistamine.

56.   A new study in Sweden suggests a chemical emitted by video monitors may cause allergic reactions in computer users.

57.   A sidebar explains how to avoid allergic reactions to skin products.

58.   A new flaky-skin mouse might offer clues to human allergic reactions.

59.   A study showed the seed could cause allergic reactions in people with a sensitivity to the nuts.

60.   A year ago, Invisible Ink had what apparently was a severe allergic reaction.