affected, sensitive
He was allergic to the seafood. The peanut caused an allergic reaction as soon as she touched it.
"Allergique"
The word 'allergic' is the adjective form of the noun allergy.
Hay fever
I am allergic to - soy alérgico a _____
Only if the person is already allergic to that antigen. Not if they are immune to the antigen. The word antigen refers to the protein that joins with the antibody. If the antibody is of the allergic type (IgE) then an allergic reaction will happen and if the antibody is of the immune type (IgG, IgM or IgA) then there won't be an allergic reaction.
Since he developed headaches each time he emptied the vacuum bags, Brian figured he was allergic to dust.
An allergen is something that generates, causes or triggers allergic symptoms. If you are allergic to house dust, house dust is your allergen.
The lighter sideI can think of a couple.Beer.Bed
I am allergic to dogs, therefore we are not getting one.
If you are allergic to something it will react your synthesis
Allergic to gluten - alérgico al gluten