No, not in the usual sense. An allergy is a reaction to a stimulus that is by itself noxious to the body in some way. A word may bring about a conditioned response, but it is the conditioning that evokes the response and not the word itself. No words, independent of any conditioned responses to them, have the ability to bring about an allergic response.
Yes
It is possible for someone allergic to horses to also be allergic to camels. The allergy is most likely to the dander, and horses and camels can have similar dander.
Yes, only if you are actually allergic to collagen. It is possible to be allergic to collagen.
no no
No but someone could be allergic to sand.
Yes, it is possible for someone to be allergic to epinephrine. In emergency situations, alternative treatments for those allergic to epinephrine may include antihistamines, corticosteroids, and other medications to manage allergic reactions. It is important for individuals with known allergies to epinephrine to discuss alternative treatment options with their healthcare provider.
you can be allergic to just about anything
yes my grandfather was so my family has a fear of the dragonfly because we didn't know it was possible to be allergic to them until him
No, it is not possible to be allergic to blood. Your immune system violently reacts to the allergens you are allergic to. If anyone were allergic to blood, they'd be dead by now. But it is possible to have a phobia of blood.
Yes, it is possible to be allergic to egg whites and experience symptoms of an allergic reaction.
no
Yes, if they are allergic to an ingredient inside them.