Hello,
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 creams.
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.
http://www.healthcaremagic.com/doctors/dr-rahul-kumar/64818
Wishing you good health,
Thank you