Lemongrass scent is also associated with mood boosting and relaxation, so you might also improve your mood by using lemongrass oil. [3] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source
Tea tree oil is a common treatment for skin ailments like acne because of its anti-inflammatory properties. [7] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source
Check the label to see if the oil is diluted. If not, it will say “undiluted. " If it is, then it will show a percentage that the oil is diluted to, which is usually somewhere between 2 and 10%. If you can’t find this information on the label, then don’t buy the product. Don’t use essential oils on your skin if they aren’t diluted. Undiluted oils are too strong and could irritate your skin. In general, oils diluted to 3-5% are safe for use on your skin. However, since your lips are sensitive areas, stick with 3% to avoid any irritation.
Always wash your hands before and after treating your cold sore to avoid spreading the virus. [11] X Research source Most studies show that essential oils don’t protect cells that aren’t already infected with the virus, so rubbing the oil over large areas won’t prevent the cold sore from getting larger.
The length of time may vary, but studies usually show effects within 4-5 days. [14] X Research source
Common reactions include redness, swelling, itching, and burning. If you aren’t sure how oils will affect you, do a patch test first. Dab a small amount of oil on your forearm and wait a few hours. If you don’t notice any reaction, then using the oil should be safe. [16] X Research source
Cold sores often improve within 2 weeks on their own even if the essential oils don’t work.