Like the other items on this list, tea tree oil is a great source of natural antimicrobial and anti-inflammatory properties. Besides lichen planus, tea tree oil can also soothe symptoms of psoriasis, acne, eczema, and other skin ailments. All you have to do is dilute the oil with water and apply it to the irritated area. Repeat this several times a day to relieve itchiness and other symptoms of lichen planus. Tea tree oil can also be prepared with mouthwash to rinse your mouth that is affected by mucosal inflammation. Make sure you dilute the mouthwash, gurgle it, and spit the mixture back out. This process might help treat symptoms associated with oral lichen planus.

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