Herpes sores follow a similar cyclical pattern and appear first like pimples that turn into small vesicles. Then, the skin becomes crusty, and eventually a scab is formed. It can take up to several weeks for the lesions to heal, during which time there may be one outbreak followed by another. Certain risk factors may increase the likelihood of an outbreak, such as: asthma medication, lack of sleep, stress, decreased immunity and ultraviolet rays.
The causes of reactivation are uncertain, but several potential triggers have been documented. A 2009 study showed the protein VP16 plays a key role in reactivation of the dormant virus. Changes in the immune system during menstruation may play a role in HSV-1 reactivation. Concurrent infections, such as viral upper respiratory tract infection or other febrile diseases, can cause outbreaks. Reactivation due to other infections is the likely source of the historic terms 'cold sore' and 'fever blister'.
The herpes simplex virus is probably the most well-known virus of the herpes family, and it is just as contagious. Herpes simplex infects epithelial cells and remains latent in neurons. HSV-1 causes recurrent oropharyngeal lesions, commonly known as “fever blisters" or "cold sores.” It is also the primary cause of sporadic encephalitis (inflammation of the brain), gingivostomatitis (inflammation of the gums and mucous lining of the mouth), and keratoconjunctivitis (severe dryness of the eye that involves the cornea) and dendritic corneal ulcers (also called HSV keratitis) in which the cornea becomes affected by herpetic lesions that look like the dendrites of neurons in the brain.
Essential oils that can help treat herpes include clove oil, tea tree oil and myrrh oil. Tea tree oil is one of the most common oils used on the skin for its natural antiviral, antibacterial properties. (3) Simply apply these essential oils three times daily to areas where cold sores are present, being careful to use a very small amount (only one to three drops). If you have sensitive skin, try mixing the essential oils with a carrier oil to dilute their strength a bit, including jojoba or coconut oil.