Most of the time, the bumps go away without any treatment after about a year. On the other hand, treatment can make your skin look better. The goal of treatment is to decrease your symptoms and speed healing of the skin lesions. If symptoms are mild, no treatment may be needed. There is no known medical treatment for lichen planus, but Herbal Treatment of Lichen Planus is often helpful in relieving itching and improving the appearance of the rash until it goes away.