allergy

a medical condition in which a person is very sensitive to one or more substances, such as pollen or certain foods

alergia

• have an allergy to something

Collocations allergy symptoms · food allergies

• She has a severe allergy to peanuts.

  Ella tiene una alergia severa a las nueces de Brasil.

the reaction that happens when someone has an allergy

reacción alérgica

• have an allergic reaction to something

Collocations allergic reaction · severe allergic reaction

• He had a bad allergic reaction after eating shellfish.

  Tuvo una reacción alérgica grave después de comer mariscos.