If you’ve ever experienced the pain of a bad headache or if you’ve been allergic to something that caused your throat to swell, then it’s time for you to recognize your allergy symptoms for what they are. There are several different allergies and many people have a range of symptoms which can be very different depending on the person. One of the most common causes of these different allergic reactions is a change in the environment. If you are living in an environment where there is more dust or pollen than usual then this can cause a reaction. It is important to remember that the symptoms you are experiencing are most likely caused by an allergen and not an allergy. Here are seven of the most common ones and the best ways to treat them.