When the spring season arrives, people are afflicted with allergy. We stay indoors during winters but we go outside with a lot of exposure to open air in spring. The plants and weeds outside release a lot of pollen at this time. Allergy can also affect us in summer and fall. The growth of mold during warm weather is the main cause of allergy symptoms at this time. Some people have allergy due to chemical irritants and smoke. Allergy can cause symptoms of cold, sneezing and running nose. It is important to take steps for protecting ourselves from allergy attack. Following are the 11 smart ways to prevent allergies.