Rsw made me aware of the limited natural remedies available for Oral Lichen Planus (OLP) so I thought I would mention one that has a pretty good track record, is readily available and is often mentioned here on EC for several health issues. The supplement is Hyaluronic Acid (HA).
Not that I have tried this for OLP, but I have tried it for something else and found it quite effective for the purpose I used it for in a relatively short period of time. The study suggests that it is helpful for people living with OLP and is non invasive. In any case it seems worth considering and there is the potential to realize other health benefits from HA. Another advantage of HA over something like curcumin is that HA mixed as a gel is clear and colorless which means no yellow teeth or extra teeth scrubbing and that seems like a big plus to me!
Here is a link to the full study that used a relatively low concentration (0.2%) HA topical with impressive results:
This seems like a really easy to use remedy for OLP!
I think it would be really interesting to see a study that combined HA with Colloidal silver for OLP. That seems like it would be a fairly easy combo to make!