If its just one Red spot with a white ring it could be a ringworm.
http://www.webmd.com/skin-problems-and-treatments/tc/ringworm-of-the-skin-topic-overview
Could it be a spider bite? I know sometimes some spider bites leave a red area with a white ring. Check with a doctor if you're unsure.
Ringworm?
"Target's logo is a bullseye which is red and white in color. The center is a red dot, the next ring is white and the outer ring is red."
To give the illusion that they are eyes.
Its a city
If you are referring to a Lewis Dot Structure, Xenon has Xe surrounded by eight dots.
I have a gold ring that has a square inside the band an it has a dot in the middle of square. What does it mean?
1. An electron dot diagram can show you that the symbols for an element surrounded by dots. Each dot stands for one valence electron.
The compression ring will have a dot or indentation marking the top of the ring .
Japan's flag is white with a red dot in the center.
A white ensign flag with a red dot represents the number one.
Yep
Ring neck snake
It is common for a map "key" or legend to gauge the size of cities on a map. For example, a city with a population of over 200,000 may be marked by a black dot surrounded by a black bordered circle line. White is the shade between the black dot and the black line of the circle.