Allergies

Allergies is a abnormal reaction that one gets from a substance. Some allergies cause small blood vessels to become leaky which in turns make it a noticeable symptom such as runny nose, watery eyes, and itching, reddened skins. There are times when one inhales a allergen and they start to have a symptom of asthma. Allergies are usually cause with a substance that you are allergic to. For example, some peoples might be allergic to fish and if they eat it they might get a response reaction to it such as asthma, itching, reddened of the skin, and in worst cases a asthma attack.