Once you hear of eczema the next question is what causes eczema? There are a number of causes, read on to find out more. One of the main causes of eczema is pollen, dust and mold spores that are in and around us that are also to blame for most of the allergies suffered by people. Next is the irritants we come into contact with that cause severe reactions. To avoid these we need to know what it is that causes the irritants and avoid them.Another cause of eczema is our diet; some eczema is caused by an allergic reaction to ingested food. Making sure we know what the food item is and cutting it out from our diets will go a long way in making sure we reduce incidences of eczema. Once you find out what causes eczema you can make the necessary changes in your lifestyle to avoid being constantly plagued by eczema.