Allergies cause far greater damage than just the physical. The long-term allergic reactions can cause emotional stress and make it difficult to concentrate at work or school which could seriously affect social life, studies, quality of sleep and work performance. Allergy medication can help treat the symptoms of an allergic reaction, but it is far from a cure. Once ceasing the dosage, allergy symptoms recur upon contact with the allergen. Allergy test can let you find out the source of allergies is the most effective way to prevent and protect yourself against allergic reactions actively.