Most of the RHO gene mutations responsible for retinitis pigmentosa alter the folding or transport of the rhodopsin protein. A few mutations cause rhodopsin to be constitutively activated instead of being activated in response to light.
Mix a few drops of Ravensara oil with tea tree oil. Add ample amount of a base oil, like coconut oil or olive oil. Apply this oil on cold sores, genital herpes and shingles lesions. Regular application 2 times a day provides great relief from the pain.
But once you have been attacked with the 'cold sore' you may get relief by applying a drop of Tea Tree oil diluted with Grapeseed oil on the blisters several times throughout the day. Tea Tree essential oil and all essential oils should be diluted in a carrier oil before applying. There are several carrier oils that will work with the Tea Tree oil. Lavender may be applied to these sores too but again, you need to dilute it prior to appllication. Lavender may mainly help with the pain and discomfort.