I Have Angular Cheilitis but Only Dark Brown Spots and Fine Paper Cuts, What Can I Do? (photo)

I have a mild version of angular cheilitis or irritant contact dermatitis due to saliva. No peeling no bleeding only burning sensation. It is simply dark brown if I apply Vasline I don't even see paper cuts. But I can't get rid of these spots. I applied hydroquinone 4, Nystatin and Desonide but no effect not even a bit. I am curious can I apply Salicylic or TCA on these spots and just a peeling effect to get rid of the upper dark skin? I did have a peeling before but it came back on new skin.