Can Humans Be Allergic To Humans?
COULD I BE ALLERGIC TO SOMEONE?
It has been used for humorous affect in movies and television, but can one person really be allergic to another human being? The answer is “yes,” but it is extraordinarily rare. The reality is that there are dozens of things people walk around with that can cause allergic reactions in others. These include colognes and perfumes, deodorants, soaps, shampoos, conditioners, basically any and all hair and skin products, not to mention the clothing they are wearing. Even a person’s jewelry can trigger someone with a metal allergy, and cosmetics that contain lanolin can result in rashes on those with wool allergies because lanolin comes from sheep. It may also be possible to be allergic to someone else’s pheromones.
P.S. Although it is possible for people to be allergic to general things such as sweat, sperm, or human hair, those situations are usually not limited to reactions to one individual.