Thanks for the query,
Oral lichen planus
is a totally different entity.
It is an auto immune condition and has no relation to oral sex
It will also not spread to any other person from you.
Treatment is with topical steroid
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you good health,