Warm welcome! Thanks for visiting world s best online health forum. I was assigned to assist you today for the health query you have. Lichen planus is self limiting usually (means it goes at its own) but sometimes the symptoms may go worse and become bothersome. In that case I usually use to prescribe Cetirizine oral, Fluocinonide And Tacrolimus topical ointments for application to affected areas of skin. For oral Lichen lesions you need to keep good oral hygiene and diet improvements to have a good power to fight against infections. You may consult a Dermatologist too for better insight. I hope this was all you needed an answer for. I am at your disposal for extended explanation and medical help if you need more. Healthiest Regards! Dr. Sumaira Kousar