Thanks for the query,
You are taking a correct medication,
The problem with LPP spots is that they are deep.
It is very difficult to remove them just with topical creams.
You can go for chemical peels
But even in this you must be cautious,
Peels can sometime aggravate lpp.
Please meet a dermatologist
for exact diagnosis and treatment.
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 a good health.