Are small red spots all over the body small pox?

No, not smallpox. Small pox has been eradicated, meaning it no longer exists in our daily lives. Rashes are difficult to describe in words. A primary care doctor or a dermatologist can examine a red spots rash to see what it might be. Sometimes rashes are related to medications, viral infections, or allergies. One should bring to the doctor a list of all medications used in the month before the rash appeared.
No. The WHO announced World-wide eradication of Smallpox on May 8 1980. Smallpox has no animal reservoirs. So Smallpox would not return naturally.