To have an allergy mean that a person is affected either by a substance in the atmosphere or by some sort of food. These days a lot of people suffer from one kind of allergy or another. So what can people do to fight allergies? If someone are allergic to chocolate, for instance, the simplest thing to do would be to avoid eating any chocolate. If, on the other hand, the allergic reaction are caused by something unknown or difficult to avoid, then the only solution is prescribed medication. The chances of someone having an allergy is bound to be great if allergies run in the family. In other words, if one parent suffers from allergies, the child has a thirty percent chance of being allergic, too. If both parents are affected,the risk doubles.