Ia m Dr. Hoellering and pleased to help you. Sorry for nobody answering yet. But we actually have no photo. Please load it up with the paperclip and ask your question. Thank you!
The picture is not very clear. But it is an issue for the dermatologist. How long has it been there? Does it itch or burn?
It looks quite harmless, actually like two normal freckles, and I see no necessity to see a dermatologist. You can show it your GP when you visit him next time to be completely sure. I am for 99.99%.