Allergy is a health condition that arises when you eat or touch certain substances your immune system is sensitive to. Your immune system is designed to fight against harmful substances like viruses and bacteria.
But with an allergy, your body launches an attack that goes far beyond what is called for substances such as drugs, dust mites, dander, pollen, mold, and pet saliva and even certain foods.
Allergies are very common in the United States. More than 50 percent of US people suffer from this disease. And this number is increase over time.
Common allergy symptoms include itchy eyes, itchy skin, rashes, sneezing, nasal congestion and wheezing. Not only do allergies cause a range of symptoms that interfere with, such as itchy eyes and sneezing, but they also can trigger other serious conditions such as asthma, sinusitis, and ear infections.
For example, when allergies cause inflammation in your nose, the opening to your sinuses can become blocked, causing sinus inflammation and sinus infections. Likewise, allergies can cause the ears not function properly, which can lead to ear infections.
Allergies do not stop there. It can cause different skin-related symptoms such as eczema and hives. Several types of allergies can cause digestive problems, and various allergy related symptoms that can affect other body functions such as headaches, loss of smell, and sleep disorders.