Cold sores are red, fluid filled blisters that occur around the mouth or cornea. Sometimes cold sores appear on fingertips, nose or chin. They are caused by viruses and are highly contagious. Vitamins are known to be highly effective in treating cold sores. Vitamin A, D, E and C play important roles in treatment of cold sores.

Vitamin C boosts the immune system and stimulates white blood cells. It also enhances the production of interferons, natural anti viral agents in the body. Vitamin A is essential for overall skin health. It helps keep sin clear and promotes rejuvenation and healing of skin. It prevents formation of scars, wrinkles etc. Stress is a common trigger for cold sores. Vitamin B complex helps ease the effects of stress on the body prevents cold sores.

Vitamin B6 is particularly important in production of antibodies which are essential for fighting against bacteria and viruses. Vitamin E boosts immunity and enhances the action of white blood cells. It also acts as an antioxidant. It can be applied topically on the skin to promote healing and prevent scarring. These vitamins can be obtained y including plenty of fruits, vegetables, dairy products, grains and nuts in your diet. You can also supplement your diet with multivitamin pills to help treat cold sores.