allergica

Allergica is the feminine form of the Italian adjective allergico, used to indicate a relation to allergy or to describe a female person or thing affected by an allergy. In medical and everyday language it appears in phrases such as una persona allergica or una reazione allergica, and can describe conditions with allergic features, for example dermatitis allergica or rinite allergica. The corresponding masculine form is allergico and the plural forms are allergici for masculine and allergiche for feminine.

Etymology-wise, allergica comes from allergia, a term built from Greek allos meaning "other" and ergon meaning "work" or action, and entered medical usage in the early 20th century, following the diffusion of the concept of allergy in European medicine. In Italian, the adjective retains the normative gender and number agreement with the noun it modifies.

In clinical terms, allergic reactions involve the immune system reacting to typically harmless substances called allergens, such as pollen, certain foods, medications, insect venoms, or mold. Allergic diseases include allergic rhinitis, asthma, atopic dermatitis, and anaphylaxis in severe cases. Diagnosis commonly relies on medical history, skin tests, and specific IgE testing, while management may involve avoidance of triggers, pharmacotherapy, and, in some instances, immunotherapy.

Overall, allergica functions as a descriptive term within Italian to specify that a person, tissue, or condition relates to allergy. It is not a disease name by itself, but a modifier used across a range of allergies-related contexts.