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.
There are a few types of this health condition known as common allergies: food allergies (allergies to eggs, fruit, milk, seafood, nuts, sesame, corn, and others), allergies to medicines, allergies to animals and animal products, allergies to mold, fungal allergies, and allergies to plant pollens.