I'm sorry it has taken so long to get the name of the medicine that Cleveland Clinic is injecting into the lichens planis areas of my dad's mouth, he had his one year follow up appointment yesterday and the name of the injected medicine is Kenalog. At first, he received the injections plus the treatments mentioned above about every 4 weeks, now it will be every 6 weeks. This therapy has greatly improved his quality of life.
I hope it can help others as well.

Best regards,
Deb Ellis