Our immune system comprises of a set of cells and how they possess the capability to cope up with antigens or any other Cold & Flu1harmful infection causing agents. The immune system is the body’s main defense organ and plays quite an important role in maintaining a healthy body and preventing the possibility of any infection. These are the most frequently occurring diseases worldwide. United States alone stands apart from the rest of the world with more than 1 billion people suffering from cold alone. Normally 1-200 viruses compromise the formation of a cold & flu virus, these diseases is generally a self limiting illness. If someone possesses a weak immune system then he is at a greater risk of contracting a cold & flu virus. Generally there are many remedies which term effective in the curing of the virus which include herbal and homeopathic treatments. Here are some of the herbal treatments for the prevention of cold & flu:- Echinacea:- Echinacea is a med...