Spots on penis syphilis or lichen?

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I have attached photos of my penis. Three months ago i noticed the shiny white patch on my penis. I used a normal eczema cream and it was going away. Suddenly after 1 months i noticed it was spread on my penis and testicle skin but its shape is rather small than previous condition. Testicle ones itches a little bit. I used that cream again. The itch goes away for sometime but the patches remains present. Some days ago i noticed white patches inside my cheek and inside of my upper lips. Some of the white patches changes colour and becomes black What are those? Any suggestions?