Most people would probably be able to name a few things that they are allergic to. However, it's likely the person doesn't know what the most common allergies actually are and how severe or not severe they can be. From peanuts and penicillin to pollen and pets, this article will focus on different aspects of some of the most common allergies in people today. 1. Pollen While a little bit of it in the air can be good for some people, too much pollen is not a welcomed sight to anyone's eyes. In fact, according to [website name] , it's one of the most common allergies in America with about 5% of men and 12% of women having problems with it. Allergies to pollen and other allergens can cause a runny nose, wheezing, and coughing, among many other symptoms. However, some people will also experience a severe allergic reaction known as anaphylaxis which may lead to vomiting or diarrhea due to the release of histamines in the body. 2. Pets Pets can be a wonderful addition to the f...