By Cathy Robinson BSc(Hons) DipNutMed MWNMS
Cold sores are the result of the herpes simplex virus. They appear as small blisters around the mouth and lips and may last for up to two weeks. Other symptoms that can accompany the blisters include fatigue, fever, swollen lymph nodes and pain. After the initial infection the virus lies dormant, and can be re-activated as a result of minor infections, local trauma, stress, sun exposure, nutritional deficiencies, or any circumstance where the immune system is compromised.
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