How Do I Remove the Dark Spot from Around my Belly Button That the Surgical Tape Left? (photo)

Something that is used to help with scarring after surgery and what I believe to be the most effective is a product called silicone gel sheeting. You can purchase this online and it is like a band aid that you wear on your incision and it will help to lighten and improve the appearance of your scar. You can also use a bleaching cream as well.

I can't see what you are talking about.  Could you please send more close-up photos of the problem.  Without close up photos we can't tell what you are calling hyper-pigmentation.

It would be very unlikely that tape would cause a permanent area of pigment change.  At this point you could ask for a topical steroid to apply to the area to block the inflammatory process as this is most likely a post inflammatory hyperpigmentation process.  

I recommend a topical product called "Biocorneum." My patients love this product. In fact, we often sell out of it (and no I am not linked to the product other than selling it). In addition, you can do Cordran tape. Your surgeon will have to write you a prescription for that though. Good luck!

I am having trouble identifying what you describe on the posted photos. Best would be to show this is person to your surgeon for advice. Sometimes hydroquinone works well on hyperpigmentation. 

All the best.