We all catch common colds from time to time, causing us to experience a runny nose, bouts of sneezing or congested sinuses which can be uncomfortable until the cold clears and the airways return to normal. However, when these symptoms persist, it can be the result of a different condition such as sinusitis (an inflammation of the lining of the sinuses) or rhinitis (recurrent runny nose). These conditions could cause shortness of breath, pain and headaches, leaving you feeling run down. Congestion and swelling can be alleviated by the use of nasal steroid sprays whilst antibiotics can treat bacterial infection. Other drugs can reduce the risk of attacks and ease discomfort but these can often cause unwanted side effects and often do not tackle the root cause of the problem. In one UK survey, over two thirds of asthma sufferers thought that various foods exacerbated their symptoms. Aside from common environmental allergens such as dust, pet hair and pollens, food an...