One of the useful option as prevention to the allergies is to use product related as allergies, created to help people for avoiding symptoms of allergy. There are several products which you may use: Purifiers or Air Filters Pollution is the most association of outdoor air. Still, one of the main reasons for developing of the number of allergic symptoms is the home air. Replacement Air Filters and Allergy Relief Air Purifiers One of better online source of everything that you need for allergy relief and symptoms of allergy is AllergyReliefCenter.com. There are more products which you may find here. So, products such as: carbon air filters, replacement HEPA air filters, furnace systems, HEPA + ionizer air filters for usage in air conditioners and allergy air purifiers. This treatment is also known as immunotherapy and it works with concept that once your immune system used substances which influence on the allergy, it will no longer respond when they enter again into your body. Still, for results with using this method for allergy relief you will need more time. Usually it needs for one or more years for results. But, also there are and other side, that says that allergies are something which is developing during the time and also disappear during the time. The fact is that there are several factors which are influence on triggering of the body to respond on allergy symptoms. There are more allergens that triggering body to react, but the most common allergens are pollen from trees, grass and weeds. This reaction of your immune system influences on triggering an allergy. The reaction may be mild or sever with uncomfortable symptoms. There are various symptoms of the allergy, some of them are: swelling of the tongue and face, difficult breathing, rash which is also known as "hives", runny nose, water eyes, throat swelling, nausea and in the worst situation death or also anaphylaxis. Knowledge that you are allergic on the latex may save you from unwanted situation that latex allergy may produce. Skin test is procedure where small amount of the latex components are injecting into your skin. So, if your skin show some symptoms of the latex allergy, such as swelling in the area where you have injected latex components, you will know that you are allergic on latex.