weigh in. Be weighed; also, be of a particular weight. For example, Because it was such a small plane, the passengers and their luggage had to weigh in before takeoff , or The fish weighed in at 18 pounds. [Late 1800s] See also: weigh.
Asthma and allergic diseases, such as allergic rhinitis (hay fever), food allergy, and atopic dermatitis (eczema), are common for all age groups in the United States.
1 Atopic dermatitis appears mostly in children who also have asthma or hay fever. 2  Other common allergies are hair dye allergies, allergies to lacquers, and the like. 3  Hives (urticaria) is a type of allergic reaction with red raised itchy patches on the skin.