White spots on lips. For reference!

Been a ex smoker - Quit 7months ago(non smoker now) from past 2-3 months have been having regular stomatitis(got this confirmed from a local ent) but I just 10-12 days ago I saw these small things in my lips. I have burning sensation only on that side of my cheek area. Have been taking multiple treatment for stomatitis but it’s not really helping me much. When I see in the mirror I see small raised spots but is very hard to notice in real unless focused really hard. Image of the small micro ulcer thing attached, but for sure there’s burning sensation only on one side of the cheeck. Meds taken: coolora(Benzadamine), triamcilone, choloroxidine - mouth wash helps for a few days but it comes back again. I have also taken some multivitamins, antioxidants from 2-3 months but stopped as one of the doctor suggested that it's not sustainable long term. Photos are attached for reference