Question

Perennial allergy sometimes considered as a seasonal allergy but seasonal allergy never
becomes a perennial allergy.​

Answer 1

Answer:

Perennial allergies may occur at any time of year—unrelated to the season—or may last year-round. Perennial allergies are often a reaction to house dust. House dust may contain mold and fungal spores, fibers of fabric, animal dander, dust mite droppings, and bits of insects.